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AD-A285 807
TARDECT---TECHNICAL! REPORT---
9 No. �3631 z
0
o TARDEC
COMPUTER-BASED DYNAMIC AND FINITE ELEMENT ANALYSIS OF THE JOINT•
SERVICES IMAGERT PROCESSING SYSTEM (JSIPS) TRAILER; MODIFIED
M371AI,
22-1/2-TON, FLATBED, SEMI-TRAILER
SEPTEMBER 1994 DTICEL ECTEOCT 3 11994
SMichael K. PozoioO Stephen G. Lambrecht 0
S ' ? U.S. Army TARDEC -3ATTN: AMSTA--RY 0
By Warren, MI 48397-5000
z>APPROVE• FOR PUBLIC VILEAFE
m-_ DISTFIBUT Oa IS UNLIMITED
U.S. Arm-y Tank-Automotive Research.Development, and Engineering
CeniterDetroit A, s.cnalWarren, Michigma 48397-5000
94 10 () • 'I" "
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Form Approved
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32$0
1. AGENCY UjE ONLY (Leav. b•an*) 2. REPCOT DATE "AT TYPEANO
DATES COVEREDI September 1994 Final
4. TITLE AND SUBTITLE S. FUNDING NUMPERS
Computer-Based Dynamic and Finite Element Analysisof the JSIPS
Trailer; Modified M871A: Flatbed Sen'2-Tra iler
6 AUTHOR(S)
Michael K. PozoloStephen G. ",arbrecht
7. PERFORMINC ORGANIZATION NAME(S) AND ADORIESS4ES) S.
PERFOPMING ORGAWIZXATIONREPORT NUM3[R
U'.S. Army :ark-Atomotive Com.,andlSystem Sim..a:,ion and
Technology DIvIs:on (AMSTA-R.r) 1363"Warren, M: 4839-5000
9. SPONSORING /MONITORING AGENCY NAME(S) AND ADORESS(ES) 10.
SPONSORING, MONITORING
" ".S. Army Tank-A.tomorve Com.mand AGENCY REPORT NUMbERSyster
Smuilat*o. and Technolcqy D:v:sion (AMSTA-RY,Warren, M:
48397-5000
11. SUPPLEMENTARY NOTES
12a. DISTRIBUTION /AVAILABILITY STATEMENT 12b. DISTRIBUTION
CODEUnlimited
13. ABSTRACT (Maximum 200 words)
This report describes the computer-based, dynamic and finite
elementanalysis of the Joint Services imagery Processing System
(DSIPS) Trailer.The JSIPS trailer is a modified M871A1, 22-1/2-ton,
flatbed, sem.-trailer.The M871A1 deck and frame were converted from
a flatbed configuration intoa "gooseneck' configuration. The
computer-based dynamic and finite elementanalysis was performed in
order to determine what effects the modificationwould have on the
structural integrity and/or operational performance ofthe
trailer.
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TABLE OF CONTENTS
1.0 SUMMARY 1
2.0 INTRODUCTION 12.1 Background 12.2 Analysis 2
3.0 PROCEDURE 23.1 Dynamic Model 23.1.1 DADS Methodology 23.1.2
M932A1/JSIPS Trailer Computer Model Description 33.1.3 Simulations
33.2 Finite Element Models 43.2.1 Computer Hardware and Software
43.2.2 Models 43.2.3 Material Properties 5
4.0 RESULTS and DISCUSSION 54.1 Dynamic Analysis 54.2 Finite
Element Analysis 64.2.1 Failure Criterion 64.2.2 Simulations 6
5.0 CONCLUSIONS and RECOMMENDATIONS 75.1 Dynamic Analysis 75.2
Finite Element Analysis 8
DISTRIBUTION LIST DIST-1
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P-.vl ability Codes
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LIST OF FIGURES
Figure 1. Finite Element Analysis Results for the JSIPS Trailer
FrameSimulating a 6" bump at 20 mph at 2.277 seconds, von
MisesStresses (psi). 9
Figure 2. Finite Element Analysis Results for the JSIPS Trailer
FrameSimulating a 6" bump at 20 mph at 2.277 seconds, von
MisesStresses (psi), Close-up of Right, Outside Gusset Plate.
10
Figure 3. Dynamic Model of M932A1/JSIPS Trailer Traversing a 9"
bumpat 10 mph. 11
APPENDICES
APPENDIX A DADS Formatted File A-1
APPENDIX B DADS Simulation Time Histories B-1
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1o0 SUMMARY
The System Simulation and Technology Division (AMSTA-RY), of the
U.S. Army Tank-Automotive Research, Development, and Enrgineering
Center (TARDEC) was taskedby the Product Manager, Trailers to
perform a computer-based simulation of theM932A1, 6x6, 5-ton
Semitractor, towing a Joint Services Imagery Processing
System(JSIPS) trailer. The JSIPS trailer is an M871A1, 22-1/2-ton,
flat bed, semitrailer thathas been modified by converting the
trailer deck and frame into a "gooseneck"configuration. PM,
Trailers decided to use computer-t-sed analyses to determine ifthe
structural integrity and/or operational performance of the trailer
would be degradedby these modifications. Computer-based analysis is
an efficient, timely and cost-effective means of making such
determinations.
Dynamic Analysis and Design System (DADS) software was used to
create a three-dimensional, rigid-body model of the M932A1/JSIPS
trailer system. This model servedtwo purposes. The first was to
simulate a series of driving maneuvers to test thestabiiity of the
truck/trailer system. The second purpose was to simulate
thetruck/trailer system encountering severe obstacles in order to
induce dynamic forcesinto the structural members of the trailer
frame. These forces, along withaccelerations and displacements of
various points on the trailer, were used as inputfor a finite
element analysis of the structural integrity of the modified
trailer frame. Adetailed finite element model of the trailer frame
was developed for this purpose.
The results of the analysis indicate that the modifications made
to the M871A1 trailerdo not degrade the dynamic performance or
stability of the M932A1/JSIPS trailersystem. The modifications
should also not have a detrimental effect on the
structuralintegrity of the system when performing its normal
operating mission. However, it isrecommended that extreme caution
be used if forced to operate this system in amanner beyond its
normal requirements.
2.0 INTRODUCTION/OBJECTIVE
2.1 Background
The System Simulation and Technology Division, of the U.S. Army
Tank-AutomotiveResearch, Development, and Engineering Center was
tasked by the Product Manager,Trailers to perform a computer-based
simulation of the M932AI, 6x6, 5-tonSemitractor, towing a Joint
Services Imagery Processing System trailer. The JSIPStrailer is an
M871A1, 22-1/2-ton, flat bed, Semi-Trailer that has been modified
byconverting the trailer deck and frame into a "gooseneck"
configuration. Thegooseneck was added to the trailer in order to
raise the kingpin height of the trailerfrom 50 inches to 60 inches
above the ground so that the trailer would be operationalwith the
M931, M931A1, M932, and M932A1 tractors. The simulation included
the
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development and analysis of a fun-scale dynamic model of the
M932A1/JSIPS trailrcombination and several finite element models of
the JSIPS trailer frame. Thedynamic model was used to determine if
the change in kingpin height on the JSIPStrailer would have any
detrimental effect on the stability and performance of
thetruck/trailer combination. 'The dynamic model was also used to
generate a variety ofreaction forces, displacements, and
accelerations at the kingpin, support gussets, andtrunnion
attachment points. The reaction forces at these points were applied
to thefinite element models. Static-linear finite element analyses
were run to determine theover-all structural integrity of the JSIPS
semitrailer.
2.2 Analysis
A computer-based dynamic model of the M932A1/JSIPS trailer
combination wascreated using Dynamic Analysis and Design System
software. The DADS software isa set of general-purpose computer
programs that can be used to model and predictthe motion of a
variety of vehicle systems. DADS builds a mathematical model of
thevehicle system that calculates positions, velocities, and
accelerations of the variousparts of the system , as well as
resultant forces that act within the system.
A finite element model and analysis of the trailer frame was
also performed for thisproject. The finite element mthod is an
analysis technique for solving the differentialequations of complex
problems. The method has become a valuable tool for
modelingstructural, mechanical, thermal, and fluid systems. In
finite elemeni analysis, astructure is broken down into simple
discrete regions, or finite elements. These simplestructural
elements, which can be beams, shells, or solids, have elastic
behavior thatcan be formulated mathematically. They are then
assembled to form the overallstructure of the item being analyzed.
It is mandatory that the behavior of the modelclosely exhibits the
behavior of the actual physical structure, in order to obtain
realisticresults and verity the model.
3.0 PROCEDURE
3.1 Dynamic Model
3.1.1 DADS Methodology
DADS contains a large library of mechanical -:.ements that can
be used to build athree-dimensional model of vehicle systems. These
include rigid and flexible bodies.joints, constraints, force and
torque-producing elements, as well as control andhydraulic
elements.
Once a model has been defined from tW, liLrary of 3-D elements,
the data set Isprocessed by the DADS analysis program and the model
is mathematicallyassembled. The equations of motion for the various
bodies in the model are
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automatically generated and numerically solved. Results of the
simulation are thepositions, velocities, and accelerations of all
bodies in the vehicle system. Alsoincluded are various data on any
force elements in the model and the internal reactionforces due to
any joints or constraints in the model.
A dynamic analysis was performed on the model of the
M932A1/JSIPS trailercombination that was created for this project.
In a dynamic analysis, the motion of thebodies is calculated from
the forces acting upon them and the mass properties of thebodies
themselves. These forces include gravity and any external forces
specified bythe user. The equations of motion are defined in terms
of the masses and forces.The resulting second-order differential
equations are then integrated numerically usinga variable step and
order algorithm.
3.1.2 M932A1/JSIPS Trailer Computer Model Description
A DADS, rev. 6.0, format file of the computer-based M932A1/JSIPS
trailer model isshown in Appendix A. The M932A1 Tractor was modeled
as rigid body. The leafspring suspension was modeled as a series of
translational spring damper actuators(TSDA) attaching the tractor
body to the front and rear axles. The axle motion wasconstrained to
ailow only vertical translation and longitudinal rotation. A
user-definedsubroutine was used to calculate the individual spring
displacements, roll stiffness, andthe relative spring displacements
in the rear bogey, where two axles share the sameleaf spring, The
trailer suspension was modeled similarly. The tractor/trailer
5th-wheel/kingpin interface was modeled as three revolute joints in
order to limit theallowable pitch, roll, and yaw motion of the
trailer at the interface. A user-definedsubroutine was used to
control the system's steering and velocity. The trailer wasmodeled
as three rigid bodies (front deck, rear left deck, rear right deck)
connectedtogether at the gooseneck location with two bracket
joints. Bracket joints remove thesix degrees-of-freedom of one body
relative to another. Using the bracket jointspermitted the three
rigid bodies to dynamically behave as one, but .lso permitted
therecording of the reaction forzes generated at the attachment
points during thesimulations. These reaction forces, along with
those at the kingpin and trunnionattachment points, were used as
the input loads for the finite element model of thetrailer frame
and gussets.
3.1.3 Simulations
TARDEC's Cray 2 super computer was use to run a series of
dynamic simulations ofthe M932A1/JSIPS trailer performing the
following:
1) Traversing a driver side, 6" bump, at 20 mph.2) Traversing a
driver side, 9' bump, at 5 mph.3) Traversing a driver side, 9g
bump, at 10 mph.4) Traversing a driver side, 6" pothole, at 5 and
10 mph.
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5) Traversing a driver side, 9E pothole, at 5 and 10 mph.6)
Traversing an altemating, 20% side slope course at 10 and 20
,nph.7) Perfrorming a 120 ft X 11 ft, Slalom maneuver at 30 and
40
mph.8) Traversing Belgian block at 20 mph.9) Traversing Perryman
Course # 1, unimproved cross-country, at
30 mph.
The cross country/Belgian block simulations were based on
therequirements of MIL-M-8090F, Roadability Tests, para 4.5.12,
Type V,group D mobility. The truck/trailer combination was
simulated at themaximum allowable sDeeds for these test courses.
MIL-M-8090F, TABLE III, requiresType V, group D vehicles to
negotiate an 11.5-degree side slope. The ,ombinationwas simulated
running through a much more severe, alternating driver ý,ode and
curbside, 20-degree side slope course. The slalom maneuver
simulations were done totest the stability of the truck/trailer
combination.
The bump and pothole simulations were done primarily to generate
loading inputs forthe finite element structural analysis of the
JSIPS trailer gooseneck. The JSIPS trailerwas modeled with a
payload of 3,000 pounds on the forward portion of the deck
and22,000 pounds on the portion of the deck rearward from the
gooseneck This payloadconfiguration was specified in paragraph 1 of
the Purchase Description for the JSIPStrailer modifications.
3.2 Finite Element Models
3.2.1 Computer Hardware and Software
PATRAN is the pre/postprocessing software package used to
visually create the finiteelement models (FEM). PATRAN's
postprocessor allows the analyst to view theresults of the analysis
in graphical form. PATRAN version 3.0 was used on a SiliconGraphics
Personal Iris workstation.
ABAQUS is a large-scale, general-purpose finite element analysis
program capable ofanaiyzing complex structures. ABAQUS was
developed by Hibbitt, Karlsson, &Sorensen, Inc. ABAQUS version
5.2, which resides on TARDEC's Cray-2Supercomputer, was used for
this project.
3.2.2 Models
The finite element model contains all the information needed to
run the analysis. Themodel defines the actual shape and dimensions
of the trailer, the materials used and
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their properties, and any boundary conditions and force
loadings.
A beam finite element model of the entire JSIPS semitrailer
frame was created for thisproject using PATRAN. The entire frame
was modeled since the loads were notsymmetric and there were no
indicated areas of interest. The JSIPS FEM contains354 elements and
535 nodes, giving 2,549 degrees of freedom (DOF). Two nodedB31 beam
elements and four/three noded S4R5/STR135 shell elements were
used.There are 21 different beam cross-sectional properties which
are defined in theABAQUS 5.2 input file.
Items such as the payload and suspension are not physically
modeled but were addedto the FEM as mass loads. Also, items such as
the spare tire and carrier, mud flaps,and hydraulic lines, which
add no structural rigidity to the trailer, were not included inthe
FEM. A payload of 22,000 pounds was applied to the rear of the
trailer and a3,000-pound payload is over the front portion of the
trailer.
3.2.3 Materi:,' Properties
The JSIPS semi-trailer is constructed primarily of ASTM A572
Grade 50 and ASTMA36 structural steal. The material properties are
given in the table below.
Properly ASTM A572 ASTM A36Young's Modulus 29.0 x 106 psi 29.0 x
106 psiDensity 0.284 lb/in3 0.284 lb/in 3
Poisson's Ratio 0.30 0.30Yield Strength* 50 ksi 36 ksiUltimate
Strength* 65 ksi 58 ksi
* Minimum values listed
These material properties were usea in the finite element
analysis and the yieldstrength was used to quantify the
results.
4.0 RESULTS and DISCUSSION
4.1 Dynamic Analysis
Appendix B (B-3 through B-15) contains the time history
responses of the pitch, roll,and yaw angles of the JSIPS trailer
frame for each of the simulations performed. Thetruck/trailer
combination did not show any tendencies toward instability
throughout theseries of maneuvers simulated, as indicated by the
plots. The most severe dynamicreaction of the JSIPS trailer
occurred when responding to the 9-inch bump at thespeeds of 5 and
10 mph (B-2,B-3). The trailer rolled to a maximum angle of
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approximately 9.50 but returned to a stable condition. The side
slope coursesimulations (B-8,B-9) show that the JSIPS trailer, as
modeled, can sustain at least a12.50 roll angle without
overturning. The trailer did not show any unstableperformance
characteristics when performing the pothole (B-4 thru B-7), slalom
(B-10,B-11), or cross-country (B-12,B-13) simulations.
Plots B-16 and B-17 show the time history response of thi
vertical accelerations (g's)into the trailer deck both fore and aft
of the gooseneck for the Belgian block courseand the Perryman
Course #1 simulations respectively. These plots indicate amaximum
vertical acceleration of approximately 1.25 g's into the forward
deck, andapproximately 1.5 g's into the rear deck during the
Belgian block simulations. Themaximum vertical accelerations for
the Perryman 1 course simulations were under 1 gfor both the
forward and rear decks.
4.2 Finite Element Analysis
Several finite element analyses were run simulating different
terrain and drivingscenarios. Reaction forces, displacements, and
accelerations were obtained from thedynamic simulations. These
values, at specified time steps, were used in thestatic-linear
finite element analyses. The time steps were picked based on
maximumforces at the gussets or tle suspension. For some analyses,
multiple time steps wereinvestigated in order to capture the "worst
case' loads.
4.2.1 Failure Criterion
The Maximum Distortion Energy criterion was used to quantify the
finite elementanalysis results for this project. According to this
criterion, also known as the vonMises criterion, a given structural
component is safe, as long as the maximum value ofdistortion energy
per unit volume in that material remains smaller than the
distortionenergy per unit volume required to cause yield in a
tensile test specimen of the samematerial. For this project, the
von Mises stress, which also takes into account theshear effects,
was compared to the yield strength of the material.
4.2.2 Simulations
9-inch bump at 10 mph: This was considered to be the worst case
scenario theJSIPS trailer could possibly witness. The dynamic
analysis simulates the truck/trailergoing 10 mph while the left
tires go over a 9 inch bump. The reaction forces in thegooseneck
gusset area were highest at 4.257 seconds into the dynamic run.
Thereaction forces, accelerations, and displacements at this time
step were used in thestatic finite element analysis. 'The resultant
stresses were greater than the yieldstrength of the material,
indicating plastic deformation. Under this condition, the traileris
unsafe and would fail, however, the extent of failure is unknown.
The highest stressoccurs in the outside gusset plate.
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9-inch bump at 5 mph: The 9" bump dynamic simulation was run at
a slower speedof 5 mDh. A time step of 9.372 seconds was used. The
stresses were in the sameoi'tside gusset plate location but were
lower. The max von Mises stress was 32,900psi which is below the
yield strength of the material.
6-inch bump at 20 mph: For this analysis, two time steps were
looked at, 2.277 and2.739 seconds. For the 2.277-second case, the
maximum von Mises stress was45,200 psi and occurred in the outside
gusset location. The gusset is constructed ofASTM A572 Grade 50
steel, which has a yield strength of 50 ksi. Figures 1 and 2depict
the color stress plot for this analysis. The second time step was
2.739seconds. The maximum von Mises stress for this case was 32,900
psi, and occurredat a lateral C-channel crossmrember near the
suspension. This stress is also belowthe yield strength of the
material, and is considered safe.
6-inch pothole at 5 mph: A time step of 8.778 seconds was used
for this analysisThe stresses were well below the yield strength of
the ASTM A572 material. Themaximum von Mises stress was 27,900 psi
and was in the outside gusset platelocation.
Belgian Block at 20 mph: A time step of 7.557 seconds was used
for this analysis.The maximum von Mises stress was 28,900 psi and
was located in a lateralcrossmember near the suspension of the
trailer. This stress is welK below the yieldstrength of the
material, and is considered safe.
Perryman-1 at 30 mph: This analysis simulated a cross-country
road with small hills.Two different time steps were investigated.
The first was at 2.739 seconds into thedynamic analysis. The FEA
results at this time show a maximum von Mises stress of23,500 psi
which is located on the outside gooseneck gusset plate. The second
timestep used was 5.445 seconds. The maximum stress was 26,200 psi
and was locatedin the main center longitudinal rails, just rearward
of the gooseneck. The stresses forboth these analyses are below the
yield strength of the steel.
5.0 CONCLUSIONS and RECOMMENDATIONS
5.1 Dynamic Analysis
The simulations performed for the dynamic analysis porlion of
this project weremore severe than what the JSIPS trailer is likely
to experience in actual use, due to itslimited mission and the
sensitivity of the electronic equipment it will transport. Itshould
also be noted that the JSIPS trailer was modeled with a payload of
3,000pounds on the forward portion of the deck and 22,000 pounds on
the portion of thedeck rearward from the gooseneck. These loads are
greater than the payload data
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I= =
provided by the Army Space Program Office. Based on the analysis
performed, themodification of the M871A1 trailer will not have a
detrimental effect on the overallstability or dynamic performance
of the trailer.
5.2 Finite Element AnalyL;;
The results of this report are based on a trailer in "like new"
condition with no rust orother damage. Also, no fatigue analysis or
prototype test were performed for thisproject.
The finite element analyses indicate no problems with the
modified M871A1 trailer withone exception. The 9-inch bump at 10
mph simulation produced high stresses in thegooseneck region of the
trailer that exceed the yield strength of the material. Asmentioned
previously, it is not likely that such a severe obstacle would be
encounteredduring the normal mission of the JSIPS trailer. However,
it is recommended thatextreme caution be used when towing the JSIPC
'railer through obstacles of thismagnitude. For aNl other
simulations, the stres-s were below the material yieldstrength.
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APPENDIX A
DADS Formatted File
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**
.*****************************************************************************
**** M932A1 5-ton Semi-Tractor
**** Towing Modified M871 20 ton (JSIPS Trailer)
**** The Payload consists of 22,000 lbs on the bed and 3,000 lbs
on the ******** gooseneck.
**** Mike Pozolo 4/25/94** * ** * ************ *********
****************** ** ** ** ** *** * *** ** **8* * ** * *** ** **
** *
SYSTEM INCHES DYNAMIC FULL TRUE GLOBAL TRUE386.08800000000
0.00000000000000E+000.00000000000000E+00-1.00000000000001.0000000000000
0.00000000000000E+00 10.000000000000 0.33000000000000E-01
o.100000000000OOE-110.100000000000OOE-02FALSE BINARYDYNAMIC TRUE
INTERPOLATED
GLOBAL0.500000CO0000OOE-010.10000000000000E-020.10000000000000E-03
*** ***********
******************************************************************
FRONT AXLE**** Front axle to chassis connection modelled as two
distance constraints at**** leaf spring location. One constraint in
center of axle to center of chassis***• to :emove axle rotational
degree of freedom. And one constraint extending**** 100 inches out
to the right side to remove lateral degree of freedom.***********
*********************************************************************
**** constraints at leaf sprinq locations
DISTANCE TA1WBL.DC TCH.BOD TAI.BOD 0 0-16.490000000000
24.250000000000 39.650000000000-16.490000000000 0.00000000000000
22.500000000000-16.490000000000 24.250000000000 40.650000000000
-16.490000000000 0.00000000000000 23.500000000000.-
15.490000000000 24.250000000000 39.650000000000-15.490000000000
0.00000000000000 22.50000000000029.701600000000
DISTANCE TAIWBR.DC TCH.BOD TAI.BOD 0 016.490000000000
24.250000000000 39.65000000000016.490000000000 0.00000000000000
22.50000000000016.490000000000 24.250000000000
40.65000000000016.490000000000 0.00000000000000
23.50000000000017.490000000000 24.250000000000
39.65000000000017.490000000000 0.00000000000000
22.50000000000029.701600000000
**** constrains rotation of fronit axle
DISTANCE TA1TR.DC TC11.BOD TA1.BOD 0 00.0000000000000
-24.250000000000 41.6500000000000.0000000000000 0.00000000000000
41.6500000000000.0000000000000 -24.250000000000
42.6500000000000.0000000000000 0.00000000000000
42.6500000000001.0000000000000 -24.250000000000
41.6500000000001.0000000000000 0.00000000000000 41.650000000000
24.250000000000
**** tractor axle lateral constraint between front axle and
chassis
A-3
-
DISTANCE TA1PB.DC TCH.BOD TA1.BOD 0100.00000000000
0.00000000000000 41.650000000000
0.00000000000000 0.00000000000000 41.650000000000100.00000000000
0.00000000000000 42.650000000000
0.00000000000000 0.00000000000000 42.650000000000101.00000000000
0.00000000000000 41.6500000000001.0000000000000 0.00000000000000
41.650000000000100.00000000000
**v* centerlink between front wheel steering knuckles
DISTANCE TA1CL.DC TA1LS.BOD TAIRS.BOD 0 0-39.000000000000
-10.430000000000 16.310000000000
39.000000000000 -10.430000000000 16.310000000000-39.000000000000
-10.430000000000 17.310000000000
39.000000000000 -10.430000000000 17.310000000000-38.000000000000
-10.4300J0000000 16.310000000000
40.000000000000 -10.430000000000
16.31000000000078.000000000000
END of FRONT AXLE*********
***********************************************************************
***** ** ******************************** *************** ***
*** ***** ****** ****** ** ** *
REAR AXLES**** Rear axle to chassis connection modelled as two
distance constraints at**** leaf spring locations. Actual
suspension has two lower suspension**** members on each side of
leaf spring mount to the center beam.**** It also has a singla
suspension member above the axle. With this***• suspension
configuration, an extra lateral constraint must be added**** to
remove the extra lateral degree of freedom.
**** constraints at leaf spring locations
DISTANCE TA2WBL.DC TCH.BOD TA2.BOD 0 0-18.690000000000
-163.68000000000 12.670000000000-18.690000000000 -140.00000000000
13.560000000000-18.690000000000 -163.68000000000
13.670000000000-18.690000000000 -140.00000000000
14.560000000000-17.690000000000 -163.68000000000
12.670000000000-17.690000000000 -140.00000000000
1.3.560000000000
23.696700000000DISTANCE TA3WBL.DC TCH.BOD TA3.BOD 0
0-18.690000000000 -170.32000000000 12.670000000000-18.690000000000
-194.00000000000 13.56000000C000-18.690000000000 -170.32000000000
13.670000000000-18.690000000000 -194.00000000000
14.560000000000-17.690000000000 -170.32000000000
12.670000000000-17.690000000000 -194.00000000000
13.560000000000
23.696700000000DISTANCE TA2WBR.DC TCH.BOD TA2.BOD 0 0
18.690000000000 -163.68000000000 12.67000000000018.690000000000
-140.00000000000 13.56000000000018.690000000000 -163.68000000000
13.67000000000018.690000000000 -140.00000000000
14.56000000000017.690000000000 -163.68000000000 12.670000000000
A-4
-
17.690000000000 -140.00000000000
13.5600U000000023.696700000000
DISTANCE TA3WBR.DC TCH.BOD TA3.BOD 0 018.690000000000
-170.32000000000 12.67000000000018.690000000000 -194.00000000000
13.56000000000018.690000000000 -170.32000000000
13.67000000000018.690000000000 -194.00000000000
14.56000000000017.690000000000 -170.32000000000
12.67000000000017.690000000000 -194.00000000000
13.56000000000023.696700000000
***** rear suspension arrangement to control lateral motion
DISTANCE TA2TR.DC TCH.BOD TA2.POD 0-22.640000000000
-166.00000000000 41.470000000000-22.640000000000 -140.00000000000
41.470000000000-22.640000000000 -166.00000000000
40.470000000000-22.640000000000 -140.00000000000
40,470000000000-21.640000000000 -166.00000000000
41.470000000000-21.640000000000 -140.00000000060
41.470000000000
26.000000000000DISTANCE TA3TR.DC TCH.BOD TA3.BOD 0
0-22.640000000000 -168.00000000000 41.470000000000-22.640000000000
-194.00000000000 41.470000000000-22.640000000000 -168.00000000000
40.470000000000-22.640000000000 -194.00000000000
40.470000000000-21.640000000000 -168.00000000000
41.470000000000-21.640000000000 -194.00000000000
41.470000000000
26.000000000000DISTANCE TA2PB.DC TCH.BOD TA2.BOD 0 0
100.00000000000 -140.00000000000 40.2600000000000.0000000000000
-140.00000000000 40.2E0000000000100.00000000000 -140.00000000000
41.2600000000000.0000000000000 -140.000001)00000
41.260000000000i01.000000OLOOO -140.00000000000
40.2600000000001.0000000000000 -140.00000000000
40.260000000000100.00000000000
DISTANCE TA3PB.DC TCH.EOD TA3.BOD 0 0100.00000000000
-194.00000000000 40.2600000000000.0000000000000 -194.OOOOOOOCOO
40.260000000000100.00000000000 -194.00000000000
41.2600000000000.0000000000000 -194.00000000000
41.260000000000101.00000000000 -194.00000000000
40.2600000000001.0000000000000 -194.00000000000
40.260000000000100.00000000000
END of REAR AXLES
***** Curves to include bump steer eifectz ufrcll.f uses RSDA
#1,2 to Steering.
RSDA TAILSBS.RSDA TA1LKP.REVTSBSL.CUR NONE NONE0.00000000000000
O.O0000000GO0000 0.00000000000000 0.00000000000000RSDA TA1RSBS.RSDA
TAIRKP.REVTSBSR.CUR NONE NONE0.00000000000000 0.00000000000000
0.00000000000000 0.00000000000000
**** M932AI Super Singles, 14R20, LOAD J, Ply Rating 18,
All-Terrain
A-5
-
TIRE TA1L.TIRE TA1LW.BOD TA1LS.BOD FULLTIRELS.CUR NONE NONE
NONE-39.000000000000 0.00000000000000 22.670000000000
24.450000000000 0.00000000000000 8.00000000000003500.00000000000
108861.98107486 0.000000000000000.80000000000000TIRE TAIR.TIRE
TA1RW.BOD TAIRS.BOD FULLTIRELS.CUR NONE NONE NONE
39.000000000000 0.00000000000000 22.67000000000024-,450000000000
0.00000000000000 2.0000000000000
3500.0000000000O 108861.98107486
0.000000000000000.80000000000000TIRE TA2L.TIRE TA2LW.BOD TA2.8OD
FULLTIRFLS.CUR NONE NONE NONE-40.656250000000 -140.00000000000
22.670000000000
24,450000000000 0.00000000000000 8.00000000003003500.00000000000
108861.98107486 0.000000000000000.80000000000000TIRE TA2R.TIRE
TA2RW.BOD TA2.BOD FULLTIRELS.CUR NONE NONE NONE
40.656250000000 -140.00000000000 22.67000000000024.450000000000
0.00000000000000 8.0000000000000
3500.00000000000 108861.98107486
0.00000000000000.80000000000000TIRE TA3L.TIRE TA3LW.BOD TA3.BOD
FULLTIRELS.CUR NONE NONE NONE-40.656250000000 -194.00000000000
22.67000000000024.450000000000 0.00000000000000 8.0000000000000
3500.00000000000 108861.98107486
0.000000000000000.80000000000000TIRE TA3R.TIRE TA3RW.BOD TA3.BOD
FULLTIRELS.CUR NONE NONE NONE
40.656250000000 -194.00000000000 22.67000000000024.450000000000
0.00000000000000 8.0000000000000
3500.00000000000 108861.98107486
0.000000000000000.80000000000000
**** Tractor springs controlled from ufrclo.f**** First group of
6 TSDAs used to measure relative distance between right**** and
left spring displacements on common axles and to average the****
displacement of the rear springs which share the same axle.
TSDA TA1LSPR.TSDA TCH.BOD TAI.BOD 0 0NONE NONE
NONE-16.490000000000 0.00000000000000
122.50000000000-16.490000000000 0.00000000000000
22.500000000000-16.490000000000 0.00000000000000
123.45000000000-16.490000000000 0.00000000000000
23.450000000000-i5.490000000000 0.00000000000000
122.50000000000-15.490000000000 0.00000000000000
22.5000000000000.00000000000000 100.00000000000 0.00000000000000
0.00000000000000TSDA TA2LSPR.TSDA TCH.BOD TA2.8OD 0 0NONE NONE
NONE-18.690000000000 -140.00000000000
122.50000000000-18.690000000000 -140.00000000000
22.500000000000-1h.r90000000000 -140.00000000000
123.45000000000-18.690000000000 -140.00000000000
23.450000000000-17.690000000000 -140.00000000000
122.50000000000-17.6q0000000000 -140.00000000000
22.5000000000000.00000000000000 100.00000000000 10.0000000000000
0.00000000000000
A-6
-
TSDA TA3LSPR.TSDA TCH.BOD TA3.BOD 0 0NONE NONE
NONE-18.690000000000 -194.00000000000
122.50000000000-18.690000000000 -194.00000000000
22.500000000000-18.690000300000 -194.30000000000
1.23.45000000000-18.690000000000 -194.00C00000000
23.450000000000-17.690000000000 -194.00000000000
122.50000000000-17.690000000000 -194.0000000n000
22.5000000000000.00000000000000 100.00000000000 10.0000000000000
0.00000000000000TSDA TA1!SPR.TSDA TCH.B3L) TA1.BOD 0 0NONE NONE
NONE
16.490000000000 0.00000000000000 122.5000000000016.490000000000
0.00000000000000 22.50000000000016.496000000C00 0.00000000000000
123.4500000000016.490000000000 0.00000000000000
23.45000000000015.490000000000 0.00000000000000
122.5000000000015.490000000000 0.00000000000000 22.500000000000
0.00000000000000 100. 00000000000 0.00000000000000
0.G0000000000000TSDA TA2RSPR.TSDA TCH.BOD TA2.BOD 0 0NONE NONE
NONE
18.690000000000 -140.00000000000 122.5000000000018.690000000000
-140.00000000000 22.50000000000018.690000000000 -140.0n00000000
123.4500000000018.690000000000 -140.00000000000
23.45000000000017.690000000000 -140.00000000000
1;2.5000000000017.69C000000000 -140.0000000000C 22.500000000000
0.00000000000000 100.00000000000 10.0000000000000
0.00000000000000TSDA TA3RSPR.TSDA TCH.BOD TA3.BOD 0 0NONE NONL
NONE
18.690000000000 -194.00000000000 122.5000000000018.690000000000
-194.00000000000 22.50000000000018.690000000000 -194.00000000000
123.4500000000018.690000000000 -194.0000000000
23.45000000000017.690000000000 -194.00000000000
122.5000000000017.690000000000 -194.00000000000 22.500030000000
0.00000000000000 100.00000000000 10.oo000000000000
0.00000000000000
**** Spring forces applied by sencond group of 6 TSDAs
TSDA TA1LSP.TSDA TCH.BOD TAI.EOD 0 0TBSTOP.CLtU NONE
NONE-16.490000000000 0.00000000000000
122.50000000000-16.490000000000 0.00000000000000
22.500000000000-16.490000000000 0.00000000000000
123.45000000000-16.490000000000 0.00000000000000
23.450000000000-15.490000000000 0.00000000000000
122.50000000000-15.490000000000 0.OOOC0000000000
22.5n00000000002271.00000000000 100.000000000000 0.00000000000000
0.00000000000000TSDA TA2LSP.TSOA TCH.BOD TA2.BOD 0 0TBSTOP.CUR NONE
NONE-18.690000000000 --140.00000000000
122.50000000000-18.690000000000 140.00000000000
22.500000000000-18,690000000000 -140.00000000000
123.45000000000-18.690000000000 -140.00000000000
23.450000000000-17.690000000000 -140.00000000000
122.50000000000-17.690000000000 -140.00000000000
22.500CO00000005983.00000000000 100.000000000000 10,0000000000000
0.00000000000000TSDA TA3LSP.TSDA TCH.BOD TA3.BOD 0 0TBSTOP.CUR NONE
NONE-18.690000000000 -194.0000000000 122.50000000000
A-7
-
-18.690000000000 -194.00000000000
22.500000000000-18.690000000000 -194.00000000000
123.45000000000-18.690000000000 -194.00000000000
23.450000000000-17.690000000000 -194.00000000000
122.50000000000-17.690000000000 -194.00000000000
22.5000000000005983.00000000000 100.000000000000 10.0000000000000
0,00000000000000TSDA TAIRSP.TSDA TCH.BOD TA1.BOD 0 0TBSTOP.CUR NONE
NONE
16.490000000000 0.00000000000000 122.5000000000016.490000000000
0.00000000000000 22.50000000000016.490000000C00 0.00000000000000
123.4500000000016.490000000000 0.00000000000000
23.45000000000015.490000000000 0.00000000000000
122.5000000000015.490000000000 0.00000000000000 22.500000000000
2271.00000000000 100.000000000000 0.00000000000000
0.00000000000000TSDA TA2RSP.TSDA TCh.BOD TA2.BOD 0 0TBSTOP.CUR NONE
NONE
18.690000000000 -140.00000000000 122.5000000000018.690000000000
-140.00000000000 22.50000000000018.690000000000 -140.00000000000
123.4500000000018.690000000000 -140.00000000000
23.45000000000017.690000000000 -140.00000000000 122.50000000000
-. 690000000000 -140.00000000000 22.5000000000005-3.0G000000000
100.000000000fn0 10.0000000000000 0.0000000CO00000TSDA IIA3RP.]bLA
TCH.BOD TA3.BOD 0 0TBSTOP.CUR NONE NONE
18.690000000000 -194.00000000000 122.5000000000018.690000000000
-194.00000000000 22.50000000000018.690000000000 -194.00000000000
123.4500000000018.690000000000 -194.00000000000
23.45000000000017.690000000000 -194.00000000000
122.5000000000017.690000000000 -194.00000000000 22.500000000000
5983.00000000000 100.000000000000 10.0000000000000
0.00000000000000
REVOLUTE TAILKP.REV TAI.BOD TAILS.BCD 0 0-39.000000000000
0.00000000000000 22.670000000000-39.000000000000 0.00000000000000
22.670000000000-39.000000000000 0.00000000000000
23.670000000000-39.000000000000 0.00000000000000
23.670000000000-38.000000000000 0.00000000000000
22.670000000000-38.000000000000 O.OOOOUOOOOOOOOO
22.670000000000REVOLUTE TAIRXP.REV TA1.BOD TAIRS.BOD 0 0
39.000000000000 0.00000000000000 22.67000000000039.000000000000
0.00000000000000 22.67000000000039.000000000000 0.000000000000, J
23.67000000000039.000000000000 0.00000000000000
23.67000000000040.000000000000 0.00000000000000
22.67000000000040.000000000000 0.00000000000000 22.670000000000
*** tractor axle to wheel revolute joints
REVOLUTE TAILW.REv TA1LS.BOD TAILW.BOD 0 0-39.000000000000
0.00000000000000 22.670000000000-39.000000000000 0.OOOuOOOOOOOOOO
22.670000000000-38.000000000000 0.00000000000000
22.670000000000-38.000000000000 0.00000000000000
22.670000000000-39.000000000000 0.00000000000000
23.670000000000-39.000000000000 0.00000000000000
23.670000000000REVOLUTE TAIRW.REV TA1RS.BOD TA1RW.BOD 0 0
A-8
-
39.000000000000 0.00000000000000 22.67000000000039.000000000000
0.00000000000000 22.670U0000000040.000000000000 0.00000000000000
22.67000000000040.000000000000 0.00000000000000
22.67000000000039.000000000000 0.00000000000000
23.67000000000039.000000000000 0.00000000000000 23.670000000000
REVOLUTE TA2LW.REV TA2.BOD TA2LW.BOD 0 0-39.000000000000
-140.00000000000 22.670000000000-39.000000000000 -140.00000000000
22.670000000000-38.000000000000 -140.00000000000
22.670000000000-38.000000000000 -140.00000000000
22.670000000000-39.000000000000 -140.00000000000
23.670000000000-39.000000000000 -140.00000000000
23.670000000000REVOLUTE TA2RW.REV TA2.BOD TA2RW.BOD 0 0
39.000000000000 -140.00000000000 22.67'000000000039.000000000000
-140.00000000000 22.67000000000040.000000000000 -140.00000000000
22.67000000000040.000000000000 -140.00000000000
22.67000000000039.000000000000 -140.00000000000
23.67000000000039.000000000000 -140.00000000000 23.670000000000
REVOLUTE TA31Tq. REV TA3.BOD TA3LW.BOD 0 0-39.0000000000 )
-194.00000000000 22.670000000000-39.000000000000 -194.00000000000
22.670000000000-38.000000000000 -194.00000000000
22.670000000000-38.00000000u000 -194.00000000000
22.67UU00000000-39.000000000000 -194.00000000000
23.670000000000-39.000000000000 -194.00000000000
23.670000000000REVOLUTE TA3RW.REV TA3.BOD TA3RW.BOD 0 0
39.000000000000 -194.00000000000 22.67000000000039.000000000000
-194.00000000000 22.67000000000040.000000000000 -194.00000000000
22.67000000000040.000000000000 -194.00000000000
22.67000000000039.000000000000 -194.00000000000
23.67000000000039.000000000000 -194.00000000000 23.670000000000
**** model of the 5th wheel hitch point
REVOLUTE HITCH I HITCH1.BOD TCH.BOD 0 00.0000000000000o
-162.81000000000 47.6200000000000.00000000000000 -162.81000000000
47.6200000000001.00000000000000 -162.81000000000
47.6200000000001.00000000000000 -162.81000000000
47.6200000000000.00000000000000 -162.81000000000
48.6200000000000.00000000000000 -162.81000000000
48.620000000000REVOLUTE HITCH 2 HITCHI.BOD HITCH2.BOD 0
00.00000000000000 -162.81000000000 57.1875000000000.00000000000000
-162.81000000000 57.1875000000000.00000000000000 -161.81000000000
57.1875000000000.00000000000000 -161.81000000000
57.1875000000001.00000000000000 -162.810C0000000
57.1875000000001.00000000000000 -162.81000000000
57.187500000000REVOLUTE HITCH 3 HITCH2.BOD F DECK.BOD 0
00.00000000000000 -162.81000000000 57.1875000000000.00000000000000
-162.81000000000 57.1875000000000.00000000000000 -162.81000000000
58.1875000000000.00000000000000 -162.81000000000
58.1875000000001.00000000000000 -162.81000000000
57.1875000000001.00000000000000 -162.81000000000
57.187500000000
RSDA HITCH ROLL HITCH 2
A-9
-
BLOCKS IN NONE NONE0.0000000000000 0.00000000000000
0.00000000000000 0.00000000000000
**** tractor body # 1 Path control frcll.f uses the body
location to find path
BODY TCH.BOD POSITIVE PARAMETERSFALSEFALSEFALSENONE NONE
NONENONE NONE NONE0.00000000000000 -117.50000000000
37.7000000000000.00000000000000 0.00000000000000
0.00000000000000
29.466200000000 175998.39510000 15889.746100000
175998.395100000.00000000000000 0.00000000000000
0.000000000000000.00000000000000 0.00000000000000
0.000000000000000.00000000000000 0.00000000000000
0.00000000000000
**** tractor axles
BODY TA1.BOD POSITIVE PARAMETERSFALSEFALSEFALSENONE NONE
NONENONE NONE NONE0.00000000000000 0.00000000000000
22.6700000000000.00000000000000 0.OOCOOOOOOOOOOO
0.00000000000000
6.7614000000000 3600.0000000000 2400.0000000000
3600.00000000000.00000000000000 0.00000000000000
0.000000000000000.00000000000000 0.00000000000000
0.OOC1O00000000000.00000000000000 0.00000000000000
0.00000000000000BODY TA2.B0D POSITIVE PARAMETERSFALSEFALSEFALSENONE
NONE NONENONE NONE NONE0.00000000000000 -140.00000000000
22.6700000000000.00000000000000 0.00000000000000
0.00000000000000
7.0120000000000 3600.0000000000 2400.0000000000
2400.00000000000.00000000000000 0.00000000000000
0.000000000000000.00000000000000 0.00000000000000
0.000000000000000.00000000000000 0.00000000000000
0.00000000000000BODY TA3.BOD POSITIVE PARAMETERSFALSEFALSEFALSENONE
NONE NONE-NONE NONE NONE0.00000000000000 -194.00000000000
22.6700000000000.00000000000000 0.O0000000CO0000
0.00000000000000
,7.2710000000000 36(0.0000000000 2400.0000000000
240C.00000000000.00000000000000 0.00000000000000
0.000000000000000.00u00000000000 0.0000000000000m)
0..000000000000000.00000000000000 0.00000000000000
0.00000000000000
**** steering knuckles
BODY rAlLS.BuD POSITIVE PARAMETERSFALSEFALSEFAT.SENONE NONE
NONENONE NONE NONE-29.000000000000 0.00000000000000
22.6700000000000.00000000000000 0.0000000000000
0.000000000000000.i00000000000COE-01 1 000000000C000
1.0000000000000 1.00000000000000.00000000000000 0.0000000000C000
0.000000000000000.00000000000000 0.00000000000000
0.000000000000000.000000000C0000 0.O000CO00000000
0.00000000000000BODY .I L.A 0D POSITIVE
PARAMETERSFALSEFALSEFALSENONE NONE NONENONE NONE NONE
39.00000:)000000 ý.0000000000000C: 2Z.670000000000
A-10
-
0.00000000000000 0.00000000000000
0.000000000000000.10000000000000E-01 1.0000000000000
1.0000000000000 1.0000000000000O.000C0000000000 0.00000000000000
0.000000000000000.00000000000000 0.00000000000000
0.000000000000000.00000000000000 0.00000000000000
0.00000000000000
**** tractor wheels
BODY TA1LW.BOD POSITIVE PARAMETERSFALSEFALSEFALSENONE NONE
NONENONE NONE NONE-39.000000000000 0.0000nO00000000
22.6700000000000.00000000000000 0.00000000000000
0.000000000000000.89000000000000 225.00U00000000 133.00000000000
133.000000000000.00000000000000 0.00000000000000
0.000000000000000.00000000000000 0.00000000000000
0.000000000000000.00000000000000 0.00000000000000
0.00000000000000BODY TA1RW.BOD POSITIVE
PARAMETERSFALSEFALSEFALSENONE NONE NONENONE NONE NONE
39.000000000000 0.00000000000000 22.6700000000000.o0000000000000
0.00000000000000 0.000000000000000.89000000000000 225.00000000000
133.00000000000 133.000000000000.00000000000000 0.00000000000000
0.000000000000000.00000000000000 0.00000000000000
0.000000000000000.00000000000000 0.00000000000000
0.00000000000000BODY TA2LW.BOD POSITIVE
PARAMETERSFALSEFALSEFALSENONE NONE NONENONE NONE
NONE-40.656250000000 -140.00000000000
22.6700000000000.00000000000000 0.00000000000000
0.000000000000000.89000000000000 225.00000000000 133.00000000000
133.00000000000000000000000000 0.00000000000000
0.000000000000000.000C0000000000 0.00000000000000
0.000000000000000.000CCO00000000 0.00000000000000
0.00000000000000BODY TA2RW.BOD POSITIVE
PARAMETERSFALSEFALSEFALSENONE NONE NONENONE NONE NONE
40.655250000000 -140.00000000000 22.6700000000000.00000000000000
0.00000000000000 0.000000000000000.89000000000000 225.00000000000
133.00000000000 133.000000000000.00000000000000 0.00000000000000
0.000000000000000.00000000000000 0.000000000O0000
0.000000000000000.00000000000000 0.00000000000000
0.00000000000000BODY TA3LW.BOD POSITIVE
PARAMETERSFALSEFALSEFALSENONE NONE NONENONE NONE
NONE-40.656250000000 -194.00000000000
22.6700000000000.00000000000000 0.00000000000000
0.O0000OU00000000.S9000000000000 225.00000000000 133.00000000000
133.000000000000.00000000000000 0.00000000000000
0.000000000000000.00000000000000 0.0000000000000
0.000000000300000.0000000000000 0.00000000000000
0.00000000000000BODY TA3RW.BOD POSIrIVE
PARAMETFRSFALSEFALSEFALSENONE NONE NONENONE NONE NONE
40.656250000000 -394.O0000000000 22.6700000000000.00000000000000
0.00000000000000 0.O000000CO0000000.89000000000000 225.00000000000
133.00000000000 133.000000000000.00000000000000 0.00000000000000
0.00000000000000
A-11
-
O.OOOOOOOOOOOOCO 0.00000000000000 0.00000000000000
0.00000000000000 0.00000000000000 0.00000000000000
**h* 5th wheel hitch bodies
BODY HITCH1.BOD POSITIVE PARAMETERSFALSEFALSEFALSENONE NONE
NONENONE NONE NONE
0.0000000000000 -162.81000000000 47.6200000000000.00000000000000
0.00000000000000 0.000000000000000.26000000000000 1.0000000000000
1.0000000000000 1.00C00000000000.00000000000000 0.00000000000000
0.000000000000000.00000000000000 0.00000000000000
O.O0000000000O00.00000000000000 0.00000000000000
0.00000000000000BODY HITCH2.BOD POSITIVE
PARAMETERSFALSEFALSEFALSENONE NONE NONENONE NONE NONE
0.0000000000000 -162.81000000000 57.1875000000000.00000000000000
0o00000000000000 0.000000000000000.26C00000000000 1.0000000000000
1.0000000000000 1.00000000000000.00000000000000 0.00000000000000
0.000000000000000.00000000000000 0.00000u00000000
0.000000000000000.00000000000000 0.00000000000000
0.00000000000000
**** Intial conditions on tractor
INITIAL TCHO.IC TCH.BOD NONENONE ORIENTATION 00.00000000000000
0.00000000000000 0.00000000000000 0.000000000000000.0000C000000000
0.00000000000000 0.000000000000000.00000000000000 0.00000000000000
0.00000000000000INtTIAL TCHX.IC TCH.BOD NONENONE X
00.00000000000000 0.00000000000000 0.00000000000000
0.0000000000000O.OOOOOOOOOOOOUO 0.00000000000000
0.000000000000000.00000000000000 0.00000000000000
0.00000000000000INITIAL TCHY.IC TCH.BOD NONENONE Y
00.00000000000000 352.000000000000 0.00000000000000
0.000000000000000.00000000000000 3.00000000000000
0.000000000000000.00000000000000 0.00000000000000
0.00000000000000INITIAL TCHZ.IC TCH.BOD NONENONE Z
00.00000000000000 0.00000000000000 0.OOOOOUOOOOOOO
O.O.00COOGO0000000.00000000000000 0.00000000000000
0.000000000000000.00000000000000 C.00000000000000
0.00000000000000INITIAL TAIZ.I'- TA1.BOD NONENONE Z
00.00000000000000 0.00000000000000 0.00000000000000
0.000000000000000.00000000000000 0.00000000000000
0.000000000000000.00000000000000 0.00000000000000
0.00000000000000INITIAL TA2Z.IC TA2.BOD NONENONE Z
00.00000000000000 0.00000000000000 0.00000000000000
0.000000000000000.00000000000000 0.00000000000000
3.O00000000000000.00000000000000 0.00000000000000
0.00000000000000INITIAL TA3Z.TC TA3.BOD NONENONE Z
00.000000000000G0 0.00000000000000 0.00000000000000
0.000000000000000.00000000000000 0.00000000000000
0.00000000000000
A-12
-
0.00000000000000 0.00000000000000 0.00000000000000INITIAL
TAIE2.IC TA1.BOD NONENONE E2 00.00000000000000 0.00000000000000
0.00000000000000 0.000000000000000.00000000000000 0.00000000000000
0.000000000000000,00000000000000 0.00000000000000
0.00000000000000INITIAL TA2E2.IC TA2,BOD NONENONE E2
00.00000000000000 0.00000000000000 0100000000000000
0.000000000000000.00000000000000 0.00000000000000 0.OOOOOOOOOOOOO0.
0000000000u0o 0.00000000000000 0.00000000000000INITIAL TA3E2.IC
TA3.BOD NONENONE E2 00.00000000000000 0.00000000000000
0.00000000000000 0.000000000000000.00000000000000 0.00000000000000
0.000000000000000.O00000000000OO 0.00000000000000
0.00000000000000INITIAL TA1LW.IC TAILW.BOD NONENONE El
00.00000000000000 0.00000000000000 0.0000000c000000
0.000000000000000.00000000000000 3.00000000000000
0.000000000000000.00000000000000 0.00000000000000
O.C0000000jO0000INITIAL TAIRW.IC TAIRW.BOD NONENONE El
00.00000000000000 0.00000000000000 0.00000000000000
0.000000000000000.00000000000000 0.00000000000000
0.000000000000000.00000000000000 O.O00G0000000000
0.00000000000000INITIAL TA2LW.IC TA2LW.BOD NONENONE El
0C.00000000000000 0.00000000000000 0.00000000000000
0.000000000000000.00000000000000 0.O000000000oooo
0.00000000000000O.OG000000000000 0.00000000000000
0.00000000000000INITIAL TA2RW.IC TA2RW.BOD NONENONE El
00.00000000000000 0.00000000000000 0.0000000000000u
0.000000000000000.00000000000000 0.00000000000000
0.000000000000000.00000000000000 0.00000000000000
0.000o0000000000INITIAL TA3LW.IC TA3LW.BOD NONENONE El
00.00000000000000 0.00000000000000 0.00000000000000
0.000000000000090.00000000000000 0.00000000000000
0.000000000000000.00000000000000 0.00000000000000
0.00000000000000INITIAL TA3RW.IC TA3RW.BOD NONENONE El
00.00000000000000 0.00000000000000 0.00000000000000
0.000000000000300.00000000000000 0.00000000000000
0.000000000000000.00000000000000 0.00000000000000
0.00000000000000INITIAL TAlLS.IC TAlLS.BOD NONENONE E3
00.00000000000000 0.00000000000000 0.0O0000CO00000O
0.000000000000000.00000000000000 0.00000000000000
0.000000000000000.00000000000000 0.00000000000000
0.00000000000000INITIAL TAlRS.IC TAIRS.BOD NONENONE E3
00.00000000000000 0.00000000000000 0.00000000000000
0.000000000000000.00000000000000 0.00000000000000
0.000000000000000.00000000000000 0.00000000000000
0.00000000000000INITIAL HITCH1.IC HITCH1.BOD NONENONE El
00.00000000000000 0.00000000000000 0.00000000000000
0.000000000000000.00000000000000 0.00000000000000
0.00000000000000
A-13
-
0.00000000000000 0.00000000000000 0.00000000000000* * **********
**** * ** ** *********** ******************** ** * ** * ***** ** *
** ** * ** **** * ** **
********************************************************,*********************************************************************************,~**********************
****************** JSIPS TRAILER; Modified M871
**************************** * * *** * * ***********
******************************* ******* ** ** * ** *** ** * ** ** *
** ************************** * ** * ******************* ****** **
** ** * ** * ** ** ** ***** ** ** * ***
**** Rear suspension is a walking beam style with no torque
rods, only the**** spring resists brake torques**** Each side of
the suspension is modeled as axles connnected to a center**** body.
This body in turn is connected to the chassis by revolute
joints*~** at the axle trunnion. This is an approximation of trying
to simulate**** the behavior of the leaf spring.
center body
****
&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
TSDA &&& TSDA**** &&&
distance &&& constraints---------- &&
&& ---------- *
*** axle * && && * axle2---- --- --- &&
&& - - - - -
trunnion
****************************************** **
*************************************
*** trailer lateral constraint for axles
DISTANCE TFAXLE LAT RR DECK.BOD TFAXLE 0 0500.00000000000-
-401.81000006000 20.500000000000
0.00000000000000 -401.81000000000 20.500000000000500.00000000000
-400.81000000000 20.500000000000
0.00000000000000 -400.81000000000 20.500000000000500.00000000000
-401.81000000000 21.500000000000
0.00000000000000 -401.81000000000 21.50000000000050L
00000'00000
DISTANCE TRAXLE LAT RR DECK.BOD TRAXLE 0 0500.00000000000-
-452.81000000000 20.500000000000
0.00000000000000 -452.81000000000 20.500000000000500.00000000000
-451.81000000000 20.500000000000
C.00000000000000 -451.81000000000 20.500000000000500.00000000000
-452.81000000000 21,500000000000
0.00000000000000 -452.81000000000
21.500000000000500.00000000000
**** trailer front axle constraints
DISTANCE DIST RF L RR DECK.BcD TFAXLE 0 018.295000000000
-427.06000000000 34.22160000000018.295000000000 -40.1.81000000000
23.16120000000019.295000000000 -427.06000000000
34.22160000000019.295000000000 -401.81000000000 23.161200000000
A-14
-
18.295000000000 -427.0600000000b 35.00000000000018.295000000000
-401.81000000000 35.00000000000027.566200000000
DISTANCE DIST LF L RL DECK.BOD TFAXLE 0 0-18.295000000000
-427.06000000000 34.2U1600000000-18.295000000000 -401.81000000000
23.161200000000-17.295000000000 -427.06000000000
34.221600000000-17.295000000000 -401.81000000000
23.161200000000-18.295000000000 -427.06000000000
35.000000000000-18.295000000000 -401.81000000000
35.000000000000
27.566200000000
DISTANCE DIST RF U RR DECK.BOD TFAXLE u 00.00000000000000
-427.06000000000 29.2216000000000.00000000000000 -401.81000000000
17.738800000000
1.0000000000000 -427.06000000000 29.2216000000001.0000000000000
-401.81000000000 17.738800000000
0.00000000000000 -427.06000000000
30.0000000000000.00000000000000 -401.81000000000
30.000000000000
27.738400000000
**** trailer rear axle constraints
DISTANCE DIST R.R L RR DECK.BOD TPAXLE 0 018.295000000000
-427.56000000000 34.22160000000018.295000000000 -452.56000000000
23.16120000000019.295000000000 -427.56000000000
34.22160000000019.295000000000 -452.56000000000
23.16120000000018.295000000000 -427.56000000000
35.00000000000018.295000000000 -452.560C0000000
05.00000000000C27.337381882000
DISTANCE DIST LR L ItL DECK.BOD TRAXLE 0 0-18.295000000000
-427.56000030000 34.221600000000-18.295000000000 -452.56030000000
23,161200000000-17.295000000000 -427.56000000000
34.221600000000-17.295000000000 -452.56000000000
23.161200000000-18.295000000000 -427.56000000000
35.000000000000-18.295000000000 -452.56000000000
35.00000000000027.337381882000
DISTANCE DIST RR U !ýR DECK.BOD TRAXLE 0 00.OUOOOOOOOOOOO
-427.56000006000 29.2216000000000.00000000000000 -452.56000000000
17.738800000000
1.0000000000900 -427.56000000000 29.2216000000001.0000000000000
-452.96000000000 17.738800000000
0,00000000000000 -427.5600C000000
30.0000000000000.00000000000000 -452.56000000000
30.000000000000
27.510992272900
**** trailer tiras
TIRE RF~rIRE RFWhL RRDECK.BOD FULLNONE NONE NONE NONE
37.090000000000 -401.81000U00000 20.50200000000021.2C0000000000
0.00000000000000 10.0000000000005000.0000000000 859426.69269624
0.00000000000000
0.8000000000000")TIRE RRTIRE RRWHL R.RDECK.BOD FULLNONE NONE
NONE NONE
37.000000000000 -452.81000000000 20.502000000000
A-15
-
21.200000000000 0.00000000000000 10.0000000000005000.0000000000
859436.69269624 0.00000000000000
0.80000000000000TIRE LFTIRE LFWHL RLDECK.BOD FULLNONE NONE NONE
NONE-37.000000000000 -401.81000000000 20.502000000000
21.200000000000 0.00000000000000 I0o.0000000000005000.0000000000
859436.69269624 0.00000000000000
0.80000000000000TIRE LRTIRE LRWHL RLDECK.BOD FULLNONE NONE NONE
NONE-37.000000000000 -452.81000000000 20.502000000000
21.200000000000 0.000CO000000000 10.0000000000005000.0000000000
859436.69265624 0.00000000000000
0.80000000000000
**** trailer leafsprings
TSDA RF SPRING TrAXLE R SPRING 0 0BSTOP NONE NONE
21.505000000000 -401.81000000000 20.50000000000021.505000000000
-401.81000000000 31.27000000000022.505000000C00 -401.81000000000
20.50000000000022.505000000000 -401.81000000000
31.27000000000021.505000000000 --401.81000000000
22.27000000000021.505000000000 --401.91000000000
32.2700000C00008772ý0000000000 11.000000000000 20.0000000000000
0.00000000000000
TSDA RRSPRING TRAXLE RSPRING 0 0BSTOP NONE NONE2'.505000000000
-452.81000000000 20.50000000000021.505000000000 -452.81000000000
31.27000000000022.505000000000 -452.81000000000
20.50000000000022.505000003000 --452.81000000000
31.27000000000021.505000000000 -452.81000000000
22.270000000001M1.505000000000 -452.81000000000
32.2700000000008772.0000000000 11.000000000000 20.0000000000000
0.00000000000000
TSDA LF SPRING TFAXLE L SPRING 0 0BSTOP NONE
NONE-21.505000000000 -- 401.81000000000
20.500000000000-21.505000000000 -401.81000C00000
31.270000000000-22.505000000000 -401.81000000000
20.500000000000--22.505000000000 -401.81000000000
31.270000000000-21.505000000000 -401.61000000000
22.270000000000-21.505000000000 -401.8100G000000
32.2700000000008772.0000000000 11.000000000000 20.0000000000000
0.00000000000000
TSDA LRSPRING TRAXLE L SPRING 0 0BSTOP NONE NONE-21.505000000000
-452.81000000000 20.500000000000-21.505000000000 -452.81000000000
31.270000000000-22.505000000000 -452.81000000000
20.500000000000-22.505000000000 -452.81000000000
31.270000000000-21.503000000000 -452.81000000000
22.2'0000000000-21.505000000000 -452.81000000090
32.2700000000008772.0000000000 11.000000000000 20.0000000000000
0.00000000000000
**** springs between the LSPRING & RSPRING and M871
TSDA RFSPRINGDAMP RR t;ECK.BOD RSPRING 0 0BSTOP NONE NONE
21. 05000000000 -401.81000000000 20.500000000000
A-16
-
21.505000000000 -401.81000000000 31.27000000000022.505000000000
-401.81000000000 20.50000000000022.505000000000 -401.81000000000
31.27000000000021.505000000000 -401.81000000000
22.27000000000021.505000000000 -401.81000000000
32.27000000000020.000000000000 11.000000000000 10.0000000000000
o.OooooooOOOOOOC
TSDA RRSPRINGDAMP RRDECK.BOD RSPRING 0 0BSTOP NONE NONE
21.505000000000 -452.81000000000 20.50000000000021.505000000000
-452.81000000000 31.27000000000022.505000000000 -452.81000000000
20.50000000000022.505000000000 -452.81000000000
31.27000000000021.505000000000 -452.81000000000
22.27000000000021.505000000000 -452.81000000000
32.27000000000020.000000000000 11.000000000000 10.0000000000000
0.00000000000000
TSDA LFSPRINGDAMP RLDECK.BOD LSPRING 0 0BSTOP NONE
NONE-21.505000000000 -401.81000000000
20.500000000000-21.505000000000 -401.81000000000
31.270000000000-22.505000000000 -401.81000000000
20.500000000000-22.505000000000 -401.81000000000
31.270000000000-21.505000000000 -401.81000000000
22.270000000000-21.505000000000 -401.81000000000
32.27000000000020.000000000000 11.000000000000 10.0000000000000
0.00000000000000
TSDA LRSPRINGDAMP RLDECK.BOD LSPRING 0 0BSTOP NONE
NONE-21.505000000000 -452.81000000000
20.500000000000-21.505000000000 -452.81000000000
31.270000000000-22.505000000000 -452.81000000000
20.500000000000-22.505000000000 -452.81000000000
31.270000000000-21.505000000000 -452.81000000000
22.270000000000-21.505000000000 -452.81000000000
32.27000000000020.000000000000 11.000000000000 10.0000000000000
0.00000000000000
**** payload bracketed to frame to allow for ease of movement of
payload
BRACKET PAYLOAD_1.BRACK PAYLOAD1.BOD F DECK.BOD 0
00.00000000000000 -191.56000000000 65.5000000000000.00000000000000
-191.56000000000 65.5000000000000.00000000000000 -191.5600000C000
66.5000000000000.00000000000000 -191.56000000000
66.5000000000001.0000000000000 -191.56000000000
65.5000000D00001.0000000000000 -191.56000000000 65.500000CD0000
BRACKET PAYLOAD 2.BRACK PAYLOAD2.BOD RR DECK.BOD 0
024.0000000000000 -343.70000000000 55.00000000000024.0000000000000
-343.70000000000 55.00000000000024.0000000000000 -343.70000000000
56.00000000000024.0000000000000 -343.70000000000
56.000000000000
25.000000000000 -343.70000000000 55.00000000000025.000000000000
-343.70000000000 55.000000000000
BrACKET PAYLOAD 3.BRACK PAYLOAD3.BOD RL DECK.BOD 0
0-24.000000000000 -343.70000000000 55.000000000000-24.000000000000
-343.70000000000 55.000000000000-24.000000000000 -343,70000000000
56.00000000,000-24.000000000000 -343.70000000000
56.000000000000
-23.00000000000 -343.70000000000 55.000000000000-23.00000000000
-343.70000000000 55.000000000030
* Bracket Joints used to generate reaction forces at gussets
for*** FFA.
A-17
-
BRACKET L GUS. BRACK RLDECK. BOD FDECK. BOD 0 0-48.000000000000
--252,31000000000 55.000000000000-48.000000000000 -252.31000000000
55.000000000000-48.000000000000 -252.31000000000
56.000000000000-48.000000000000 -252.31000000000
56.000000000000
-47.00000000000 -252.31000000000 55.000000000000-47.00000000000
-252.31000000000 55.000000000000
BRACKET R GUS.BRACK RRDECK.BOD F DECK.BOD 0 048.000000000000
-252.31000000000 55.00000000000048.000000000000 -252.31000000000
55.00000000000048.000000000000 -252.31000000000
56.00000000000048.000000000000 -252.31000000000
56.00000000000049.00000000000 -252.31000000000
55.00000000000049.00000000000 -252.31000000000 55.000000000000
**** joints which attach center body (leaf spring) to trailer
chassis
REVOLUTE RTRUNNION RRDECK.BOD RSPRING 0 021.505000000000
-426.81000000000 33.04910000000021.505000000000 -426.81000000000
33.04910000000022.505003000000 -426.81000000000
33.04910000000022.505000000000 -426.81000000000
33.04910000000021.505000000000 -426.81000000000
34.04910000000021.505000000000 -426.81000000000 34.049100000000
REVOLUTE LTRUNNION RLDECK.BOD L-SPRING 0 0-21.505000000000
-426.81000000000 33.049100000000-21.505000000000 -426.81000000000
33.049100000000-22.505000000000 -426.81000000000
33.049100000000-22.505000000000 -426.81000000000
33.049100000000-21.505000000000 -426.81000000000
34.049100000000-21.5050000000U0 -426.81000000000
34.049100000000
**** trailer wheel hubs revolute joints
REVOLUTE RF REV RFWHL TFAXLE 0 037.000000000000 -401.81000000000
20.50000000000037.000000000000 -401.81000000000
20.50000000000038.000000000000 --401.81000000000
20.50000000000038.000000000000 -401.81000000000
20.50000000000037.000000000000 -401.81000000000
21.50000000000037.000000000000 -401.81000000000 21.500000000000
REVOLUTE RR REV RRWHL TRAXLE 0 037.000000000000 -452.81000000000
20.50000000000037.000000000000 -452.81000000000
20.50000000000038.000000000000 -452.81000000000
20.50000000000038.000000000000 -452.81000000000
20.50000000000037.000000000000 -452.81000000000
21.50000000000037.020000000000 -452.81000000000 21.500000000000
REVOLIJTE LFREV LFWHL TFAXLE 0 6-37.000000000000
-401.81000000000 20.500000000000-37.000000000000 -401.81000000000
20.500000000000-38.000000000000 -401.81000000000
20.500000000000-38.000000000000 -401.81000000000
20.500000000000-37.000000000000 -401.81000000000
21.500000000000-37.000000000000 -401.81000000000
21.500000000000REVOLUTE LR RF•V LRWHL TRAXLE 0 0-37.000000000000
-452.81000000000 20.500000000000-37.000000000000 -452.81J00000000
20.500000000000-38.000000000000 -452.81000000000
20.500000000000
A-18
-
-38.000000000000 --452.81000000000
20.500000000000-37.000000000000 -452.81000000000
21.500000000000-37.000000000000 -452.81000000000
21.500000000000
**** trailer chassis
BODY FDECK.BOD POSITIVE PARAMETERSFALSEFALSEFALSENONE NONE
NONENONE NONE NONE0.00000000000000 -191.56000000000
62.7500000000000.00000000000000 0.00000000000000
0.000000000000006.9551920000000 7484.0000000000 5359.0000000000
12808.000000000
0.00000000000000 0.00000000000000
0.000000000000000.00000000000000 0.00000000000000
0.000000000000000.00000000000000 0.00000000000000
0.00000000000000BODY RL DECK.BOD POSITIVE
PARAMETERSFALSEFALSEFALSENONE NONE NONENONE NONE
NONE-24.000000000000 -343.70000000000
50.0000000000000.00000000000000 0.00000000000000
0.00000000000000
13.910384000000 69413.105000000 2786.0000000000
71968.0000000000.00000000000000 0.00000000000000
0.000000000000000.00000000000000 0.00000000000000
0.000000000000000.00000000000000 0.00000000000000
0.00000000000000BODY RRDECK.BOD POSITIVE
PARAMETERSFALSEFALSEFALSENONE NONE NONENONE NONE
NONE24.0000000000000 -343.70000000000
50.0000000000000.00000000000000 0.00000000000000
0.00000000000000
13.910384000000 69413.105000000 2786.0000000000
71968.0000000000.00000000000000 0.00000000000000
0.000000000000000.00000000000000 0.00000000000000
0.000000000000000.00000000000000 0.00000000000000
0.00000000000000
**** trailer axles
BODY TFAXLE POSITIVE PARAMETERSFALSEFALSEFALSENONE NONE NONENONE
NONE NONE0.00000000000000 -401.81000000000
20.5000000000000.00000000000000 0.00000000000000
O.OOC00000000000
1.9C67000000000 64.920000000000 1564.0000000000
1564.00000000000.00000000000000 0.00000000000000
0.000000000000000.00000000000000 0.00000000000000
0.000000000000000.00000000000000 0.00000000000000
0.00000000000000BODY TRAXLE POSITIVE PARAMETERSFALSEFALSEFALSENONE
NONE NONENONE NONE NONE0.00000000000000 -452.81000000000
20.5000000000000.00000000000000 0.00000000000000
0.000000000000001.9067000000000 64.920000000000 1564.0000000000
1564.0000000000
0.00000000000000 0.OOOOOOOOO00000
0.000000000000000.00000000000000 0.00000000000000
0.000000000000000.00000000000000 0.00000000000000
0.00000000000000
**** trailer wheel hubs
BODY RFWHL POSITIVE PARAMETERSFALSEFMLSEFALSEqONE NONE NONENONE
NONE NONE
A-19
-
37.000000000000 -401.81000000000 20.5000000000000.00000000000000
0.00000000000000 0.000000000000000.39000000000000 44.000000000000
24.500000000000 24.5000000000000.00000000000000 0.00000000000000
0.000000000000000.00000000000000 o.ooooooooooooCo
0.000000000000000.00000000000000 0.00000000000000
0.00000000000000BODY RRWHL POSITIVE PARAMETERSFALSEFALSEFALSENONE
NONE NONENONE NONE NONE
37.000000000000 -452.81000000000 20.5000000000000.00000000000000
0.00000000000000 0.000000000000000.39000000000000 44.000000000000
24.500000000000 24.5000000000000.00000000000000 0.00000000000000
C.000000000000000.00000000000000 0.00000000000000
0.000000000000000,00000000000000 0.00000000000000
0.00000000000000BODY LFWHL POSITIVE PARAMETERSFALSEFAISEFALSENONE
NONE NONENONE NONE NONE-37.000000000000 -401.81000000000
20.5000000000000.00000000000000 0.00000000000000
0.000000000000000.39000000000000 44.000000000000 24.500000000000
24.5000000000000.OOOOOOOOOOOOO 0.00000000000000
0.000000000000000.00000000000000 0.00000000000000
0.000000000000000.00000000000000 0.00000000000000
0.00000000000000BODY LRWHL POSITIVE rARAMETERSFALSEFALSEFALSENONE
NONE NONENONE NONE NONE-37.000000000000 -452.81000000000
20.5000000000000.00000000000000 0.00000000000000
0.000000000000000.39000000000000 44.000000000000 24.500000000000
24.5000000000000.00090000000000 0.00000000000000
0.000000000000000.00000000000C00 0.00000000000000
0.000000000000000.00000000000000 0.00000000000000
0.00000000000000
**** center body to simulate leafspring coupling between
axles
BODY RSPRING POSITIVE PARAMETERSFALSEFALSEFALSENONE NONE
NONENONE NONE NONE
21.505000000000 -426.81000000000 28.9252000000000.00000000000000
0.00000000000000 0.000000000000000.52000000000000 25.000000000000
1.0000000000000 25.0000000000000.00000000000000 0.00000000000000
0.000000000000000.00000000000000 0.00000000000000
0.000000000000000.00000000000000 0.00000000000000
0.00000000000000BODY LSPRING POSITIVE PARAMETERSFALSEFALSEFALSENONE
NONE NONENONE NONE NONE-21.505000000000 -426.81000000000
28.9252000000000.00000000000000 0.00000000000000
0.000000000000000.52000000000030 25.000000000000 1.0000000000000
25.0000000000000.00000000000000 0.00000000000000
0.000000000000000.00000000000000 0.00000000000000
0.000000000000000.00000000000000 0.00000000000000
0.00000000000000
**** trailer payload: Front and Rear differ. ***
BODY PAYLOADi.BOD POSITIVE PARAMETERSFALSEFALSEFALSENONE NONE
NONENONE NONE NONE0.00000000000000 -191.56000000000
84-000000000000
A-20
-
0.00000000000000 0.00000000000000
0.000000000000007.77121541809000 59007.8100000000 44762.2000000000
85865.1300000000.00000000000000 0.00000000000000
0.000000000000000.00000000000000 0.00000000000000
0.000000000000000.00000000000000 0.00000000000000
0.00000000000000BODY PAYLOAD2.BOD POSITIVE
PARAMETERSFALSEFALSEFALSENONE NONE NONENONE NONE
NONE-24.000000000000 -343.70000000000
96.0000000000000.00000000000000 0.00000000000000
0.0000000000000028.4944565330000 165581.000000000 43767.0000000000
165681.000000000.00000000000000 0.00000000000000
0.000000000000000.00000000000000 0.OCOOOOOOOOOOOO
0.000000000000000.00000000000000 0.00000000000000
0.00000000000000BODY PkYLOAD3.BOD POSITIVE
PARAMETERSFALSEFALSEFALSENONE NONE NONENONE NONE
NONE24.0000000000000 -343.70000000000
96.0000000000000.00000000000000 0.00000000000000
0.0000000000000028.4944565330000 165581.000000000 43767.0000000000
165581.000000000.00000000000000 0.00000000000000
0.000000000000000.00000000000000 0.00000000000000
0.000000000000000.00000000000000 0.00000000000000
0.00000000000000
**** trailer initial conditions
INITIAL FDECKO.INIT TFAXLE NONENONE ORIENTATION
00.00000000000000 0.00000000000000 0.00000000000000
0.000000000000000.00000000000000 0.00000000000000
0.000000000000000.00000000000000 0.00000000000000
0.00000000000000
INITIAL TFAXLE-Z.IC TFAXLE NONENONE Z 00.00000000000000
0.00000000000000 0.00000000000000 0.000000000000000.00000000000000
0.00000000000000 0.000000000000000.00000000000000 0.00000000000000
0.00000000000000INITIAL TFAXLE-Z2.IC TFAXLE NONENONE E2
00.00000000000000 0.000OJ000000000 0.00000000000000
0.000000000000000.00000000000000 0.00000000000000
0.000000000000000.00000000000000 0.00000000000000
0.00000000000000INITIAL TRAXLE-Z.IC TRAXLE NONENONE Z
00.00000000000000 0.00000000000000 0.00000000000000
0.000000000000000.00000000000000 0.00000000000000
0.000000000000000.00000000000000 0.00000000000000
0.00000000000000INITIAL TRAXLE-E2.IC TRAXLE NONENONE E2
00.00000000000000 0.00000000000000 O.OOOOCOOOOOOOOO
0.000000000000000.00000000000000 0.00000000000000
0.0000C0000000000.00000000000000 0.00000000000000
0.00000000000000INITIAL LFWHL-EI.IC LFWHL NONENONE El
0J.00000000000000 0.00000000000000 0.00000000000000
0.000000000000000.00000000000000 0.00000000000000
0.000000000000000.00000000000000 0.00000000000000
0.00000000000000INITIAL RFWHL-EI.IC RFWHL NONENONE El
00.00000000000000 0.00000000000000 0.00000000000000
0.000000000000000.00000000000000 0.00000000000000
0.00000000000000
A-21
-
0.00000000000000 0.00000000000000 0.00000000000000INITIAL
LRWHL-El.IC LRWHL NONENONE El 00.00000000000000 0.00000000000000
0.10000000000000 0.000000000000000.00000000000000 0.00000000000000
0.000000000000000.00000000000000 0.00000000000000
0.00000000000000INITIAL RRWHL-El.IC RRWHL NONENONE El
00.00000000000000 0.00000000000000 0.00000000000000
0.000000000000000.00000000000000 0.00000000000000
0.000000000000000.00000000000000 0.00000000000000
0.00000000000000ROAD ROAD NONE 0.000000000000000.00000000000000
0.00000000000000 0.00000000000000 0.000000000000000.00000000000000
0.00000000000000 0.O00000000000000 0.00000000000000
201.000000000000 20.0000000000000 0.50000000000000
3.0000000000000.3
**** tractor tire lateral stiffness curve
CURVE TIRELS.CUR PAIRED.XY 13 1
0.12500000000000 0.50000000000000E-020.10000000000000E-01
1.0000000000000
0.00000000000000 0.00000000000000 CUBIC
0.00000000000000 0.00000000000000 4.0000000000000
0.50000000000000
10.000000000000 0.70000000000000 15.000000000000
0.80000000000000
20.000000000000 0.90000000000000 30.000000000000
0.85000000000000
40.000000000000 0.82000000000000 50.000000000000
0.80000000000000
60.000000000000 0.78000000000000 70.000000000000
0.75000000000000
80.000000000000 0.73000000000000 90.000000000000
0.70000000000000
100.00000000000 0.65000000000000
**** bump steer curvesCURVE TSBSL.CUR PAIRED.XY 13 3
0.00000000000000 50000.000000000 0.17500000000000E-01
1.0000000000000
0.00000000000000 0.00000000000000 LINEAR
38.000000000000 0.00000000000000 38.400000000000
0.00000000000000
38.600000000000 0.00000000000000 38.700000000000
0.00000000000000
38.800000000000 600.00000000000 38.900000000000
1800.0000000000
39.000000000000 3700.0000000000 39.100000000000
6500.0000000000
39.200000000000 10150.000000000 39.300000000000
15000.000000000
39.400000000000 20000.000000000 39.600000000000
30000.000000000
40.000000000000 50000.000000000CURVE TSBSR.CUR PAIRED.XY 13
4
50000.000000000 0.00000000000000 0.17500000000000E-01
1.0000000000000
0.00000000000000 0.00000000000000 LINEAR
-31.000000000000 -50000.000000000 -30.600000000000
-30000.000000000
-30 4Q0000000000 -20000.000000000 -30.3000U0000000
-15000.G00000000
-30.200000000000 -10150.000000000 -30.100000000000
-6500.0000000000
-30.000000000000 -3700.0000000000 -29.900000000000
-1800.0000000000
-29.800000000000 -600.00000000000 -29.700000000000
0.00000000000000
-29.600000000000 0.00000000000000 -29.403000000000
0,00000000000000
-29.000000000000 0.00000000000000CURVE TBSTOP.CUR PAIRED.XY 2
6
50000.0000000000 50000.000000000 1.0000000000000
1.0000000000000
0.00000000000000 0.00000000000000 LINEAR
-3.0000000000000 0.OOOOCOOOOOOOOO 3.0000000000000
0.00000000000000
**** trailer bump stop curve
CURVE BSTOP PAIRED.XY 4 10
17544.0000000000 17544.000000000 1.0000000000000
1.0000000000000
O.00000000000000 0.00000000000000 LINEAR
0.0000000000000 -9500.0000000000 0.5000000000000
9400.00000000000
1.0000000000000 17800.000000000 1.5000000000000
25600.0000000000
A-22
-
CURVE BSTOP2 PAIRED.XY 3 100.00000000000000 5000.0000000000
1.0000000000000 1.00000000000000.00000000000000 0.00000000000000
LINEAR-10.000000000000 0.00000000000000 5.0000000000000
0.00000000000000
15.000000000000 75000.000000000
**** hitch roll curves ****CURVE BLOCKSOUT PAIRED.XY 7
100.00000000000000 5000.0000000000 1.0000000000000
1.00000000000000.00000000000000 0.00000000000000
LINEAR-0.1745000000000 -100000.00000000 -0,122200000000
0.00000000000000-0.0698000000000 0.0000000000000 0.000000000000
0.000000000000000.0698000000000 0.0000000000000 0.122200000000
0.000000000000000.1745000000000 100000.00000000
CURVE BLOCKSIN PAIRED.XY 2 10100000000.00000 100000000.00000
1.0000000000000 1.0000000000000
0.00000000000000 0.00000000000000 LINEAR-10.000000000000
-100000000.00000 10.000000000000 100000000.000000USERFORCE 352.
A-23
-
APPENDIX B
DADS Simulation Time Histories
-
B-2
-
611, Q20 -,h
0.60
0.40
P
-0.40
-0 .80 " -- --
- 0. 9. 1.0 2. .0 3.0 4.0 S. ,r 6.0 7.0 8.0 9.0 10.00E 0
6" 0 u, @3 20 ,oPh
E EOt C- 0
5.0
4.0 -T A A -"
3.0
2.0 -1 -J I 11R
II
1.0 -
0.0- -
-3.0
---,0 -- J0.0 1.0 2.0 3.0 4.0 S.0 6.0 7.0 8.0 9.0 10.0
E 0
.60",E 0
Soo0.400
S10. 200Ii I-0.700V 7 '
0..4.0 Ll -...... . .0.0 1.0 2.0 3.0 4.0 5,0 6.0 :'.0 8.0 ?.0
10,0
E 0
B-3
-
E 0
0.40 - - -
0.20 -
p 0.00
-0.20
-0.40
S 0.80 - --
-1.20
-1.400.0 1.0 2.0 3,0 4.• . 0 G.0 7.g S. 0 9.0 10.0 31.o 12.0
E 0
.E 010.0 ""
8.0
4.0-
-4.0 -----.-------- ----
0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 3.0 10.0 1.0 12.0E 0
9, B, @ S
0.40
" -0.20
-0.80 - ---
-0.60
00. 1.09 .0 3,0g 4.0 5,k] E,.o 7.0 8.
-
9" F.,, a 10 ..•hSE 00.60
0.4O 0-
0.20--'° - -
p 0.00 --
-0.20 -
-0.40
.6.0
6!.0
48.02.0 -
6.00.0
0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0
1.. E~ 0
0.000
3 0-40 1 .~
• E 0
0.60,. 51- F -
-•( . 2 -I-i i.z, 5, .• , . 9 z•.o I
220 ~----~ ------ - -
-
J . i~~ ~ ~ 0 'Jol . c*0.60 -
0.200k-- _
-0 .0 VL
-0.? 80-t
0. 0 P.7 ?0 3. 0 48 C .0 6. 7 08.0 9.010.0
E- J
.E 01.010 --
0-0
-0.00
0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0E 0
61 Potl+oI. @ S ýp1
'E6 0
0. 100 -*-- .2.C050
0. 0t
-0. . .'L
0 1.2 -. 0 4.01 0 6 .1 0 i 0. 7ý.0 10.0
B-6
-
6" PoU,oI. 2 10 Qh0.80
0.60 .f
0.40-0.20
1A
-0.40 v Yv ivvl•VS-0.60 -- - ]
-0.80
-1.00 L0.0 1.0 2.0 3.0 4.0 S.0 6.0 7.0 8.0 9.0 10.0,E 0
6 Pod.hol. 2 0 -phE 0
4.00 1
2.00 -
2.00
g -. 00 --
-2.00 1 -
-3.00 -
0.0 1.0 2.0 3.0 4.0 5 60 r.0 7.0 6.0 9.0 10.0
E 0
0 . 400 -- - - - -- - - - ... . ..- ,
0.360 .3- -
0.200
-0. v, . .
ý0.2 100 -- )-- -- -.- -= ,.
0 - . 3V. -......
~/
0.6 Q' I . .0 3.0) 4.0 5.0 6.0 7.0 6.0 9.0 10.0
B-7
B-7
-
9" P,,j-oI. a S .,,E 0
0.8Ž0 - -------0.60
P 1.20 I- z-10.40
0.10 2. . . 6 8e
-0.00
-0 .20 V 1vI V
.-E 0
r, •2.0 ' - --- - - -/- -
-0.60
-09
o -4.0 ----- -
-6.00
-8.0 - .1....0.0 1.•2 .0 3.0 4.0 S.0 6.0 7.0 8.0 9.0 10.0
,E 0
to
., 0
-0.0 ------ --_t-0. 0-
e. , 1.0 2.0 3.0 4,.0 S.0 6.0 7.0 8.0 9.0 10.0E 0
BY Pk-8.Sp
-
1.501.00 --
0.50
0.0
1 so-0 0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0
rE 0
9" P 10hoI. • 20
.E 05.0
4.0 i f -
2.0 - ^
0.0
9I0 -2.0
-3.0 ---- -
-4.0
-5.00.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0
.E 0
9' Pekho1. 8 20
0.60ry 11-
0.40
0.30, -y
Y' 0 . 2 0 A
0.00 --
-0.10 <
-0.20 - - p --0.30 -
-0.400.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 3.0 9.0 10.0
.E 0
B-9
-
. E 0
0.180 --
0. 160
0.4 v-
p 0.120
"0.080 A'lA I.0.060
0.020
0.000
-0.0 5.0 10.0 1s.0 20.0 25.0 30.0 35.0 40.0E 0
20% •I6erot;n S;de Sio C-,- to O¶ hSE 0I.80
10.0 '
0.0
-S.0 .. . .
"0.0 5.0 10.0 ¶5.0 20.0 25.0 30.0 35.0 40.0
20% •lt -,,;n, S;d. Slop-e C-,- @, 10 -,oh
0.300 - _ _ _
0.2 ---- ----
0.200 - - -I0. Ise$,
0.100
-0. 0r_,
0.1000 - ~ --
-0.0so
-- p 20e
-0. 300 -0.0 S.0 20.0 15.0 Co.0 2.5e0 10.0 3. 0 Nf. 0
FO 0
B -11
-
20*1 S d. Sloý C--. ii 20 4E 0
0.400
e. 180 A_0.160
0.140-
0.120
0.080 1111 I N Illl v) vv ,0.060
0.040
0.020 - - -
-0.040 - I I - L-0.0 2.0 6.0 8.0 10.0 12 0 24.0 16.0 28.0
20.0
.E 0
20% S;d, Sb 0 . Co,--... 8 20 ,4.E 0
10.0
1S.0r
0.0
-5.0
-10.0 - i-15,0 --Lii V.... ..
0,0 2O, 4.0 E.0 8.0 10.0 2Q.0 14.0 16.0 10.0 ?0.0E 0
20/ Sd6. Coo.. R 20 ,K
0.1300 - ..
-v. i0]0.2p3
-0 .. L0 .. .. .. . .. .. . . ..... . .- . . . . . .. . . .
0. 0 0.. 6. ' 8.0 10.0 1?.0 14.0 ILO 28.03 10.0
B-II
-
120' II' Stoto, M ý , @ 30 -,Pl•E 00.050 -0 ow
-0. - -OSO - -
-0.05 so __ - - - -
- ° , , I , Il _ _p -0.200 L7- - - ____
-0.250 _ _
-0.300
-0.350
• -0.400
_2 0
1.06 ' -t1- _o-- @ 30
0.00
-0.50 __
0.0 2.0 4.0 E.0 8.0 0. 20 140 16.0E 0
120' . 11' SIL ~ .. ~. 30
.60
4.0 ~7
2.0
C.0 2.0 4.0 6.0 8.0 10.0 ;2.0 .0 a.S0
B-12
-
120' 1'1 St.I0, M ý -, Q40 ph.E 00.200
0.200 -
0.000
-0.1200
11 Al till
0I
-0.6 00 -
-0.7000.3 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0
E 0
t!
120' 11' Sto- loM.• , a 40 ph3 002.S2
2.0 .
1.50 . . ...
0.0 2o ao 6080 1 . 1H. I4. r1nV
P 2 -i-- -... - -
-0.50
01.00 1-1.50-- _ _
-2.0 2.
-2.50 - -
0.0 2.0 4.0 6.0 8.0 10.0 12.2 14.0 16.0
1?2' 1 1 Stt- M .--- 3 40 ,,
4.0
( 2 .0 --
-4.0 .~
0.p 2.0 . . 8.0 10.0 12.0 14.02 il
B-13
-
• E 0
2.00
I.S
1.00
-I~ ~ ..$1 .
0.0
-0.00
0.0 2.0 4.0 6.O 8.0 10.0 22.0 14.0 16,3 18.0 20.0E 0
Belg;on Block o j 20 .h,E 0
8.0
6.0
4.0 ----R
2.0 -
S 0.0
-2.0 ----
-4.0 -
0.0 2.0 4.0 6.0 8.0 0 2. 0 20 4.0 160 18.0 20.0.F- 0
BA.6
K' - - --.- --"0'. GO(
0.30
tt ,
0.0 -1-e. IL
-0.30 II-0.ý 40
0. W0.0 ?. .0 0 6 0 .l~0
il 0
B-14
-
SPý , ,o I Co u.e 2 30 v
i • E 0
'I 1-0.0 P.,0 4.0 E.0 8.0 10.0 12.0 14.0 16.0 1- .0 20A
50E 0-1...- a-3
P I Cyo, .1 -.u • 30 @0kE 0
i.00
0.00 1
I
_
0.1 P . 0 4. 0 6.0 V!.0 10 ,.0 12.0 14.0 16.0, 18.0 20.0
B-15
-
B0(Ig;- 8l( 20 F• F-6 Dýi
1.50 -
1.00
-0.50 N
-1.00
Y -2.50
-3.00 - I-3.SO --
-4.00 -- -- --]
-4.500.0 2.0 4.0 6.0 9.0 10.0 !2.0 14.0 16.0 18.0 20.0
.E 0
60giQ. 6Ioc; 9 20 c'b -,c1.. D-
2.00 _
100
0.0
1.. o,,
r---
T- -iik--B-10
3. . 4°0 6°3 ,0 0•0 12.0 14.0 16.0 18.0 cO0.0.E 0
B-I E
-
1.00 - T -...- - . ., E . ,0
0.00
*2.00 - --3.00
S-5.00
-6.00 ii l I0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 38,0 20.0SE
j
.- 6 1 C - - a 30 h
1.00
0.0 -
o.,-o
0. 0
-0.20
-0.40
-0.80 ....- - - -{-- -0.0 2.0 4.0 6.0 8.0 ý0.0 12.0 14.0 6b.0
18.0 20.0
, E 7t. ~
B- 17
-
DISTRIBUTION LIST
Copies
Commander 2Defense Technical Information CenterBldg. 5, Cameron
StationATTN: DDACAlexandria, VA 22304-9990
Manager 2Defense Logistics Studies Information ExchangeATTN:
AMXMC-DFort Lee, VA 23801-6044
Commander 2U.S. Army Pank-Auzomotive CouammadATIN: ASQNC-TAC-DIT
(Tcchnical Library)Warren, MI 48397-5000
CommanderU.S. Army Tank-Automotive CommandATTN: AMSTA-CF (Mr.
W`-heelock)Warren, M1 48397-5000
DirectorU.S. Army Materiel Systems Analysis ActivityATTN:
AMXSY-MP(Mr. Cohen)Aberdeen proving Ground, MD 210'G05.5071
Commander 5U.S. Army Tank-Automotive CommandAttn: AMSTA-RYC (Mr.
Pozolo)Warren, MI 48397-5009
Commander 2U.S. Army Tank-Automotive CommandAttn: AMCPM-T (Mr.
Ostrowski)Warren, MI 48397-5000
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