12
Presented by Ameya P. Nijasure

Stress analysis of chassis ppt

Embed Size (px)

Citation preview

Presented by

Ameya P. Nijasure

RECOGNITION OF NEED

MODELING

(CAD)

TESING

(PROTOTYPE & CAE)

MANUFACTURING

FEEDBACK

Provide mounting points for the suspensions, the steering

mechanism, the engine and gearbox, the final drive, the fuel

tank and the seating for the occupants

Provide rigidity for accurate handling;

Protect the occupants against external impact.

• CATIA

• CREO

• SOLIDWORKS

• NX-CAD, etc.

CAD

• ANSYS

• NX - NSTRAN

• LS dyna, etc.

CAE

Pre Processing

• material properties

• modeling(CAD model)

• connections in assembly

• meshing (discritization)

• loads and boundary conditions

solution

• creating element matrix equation

• Assembly of element matrix equation

post processing

• results displacements stress temp distribution etc.

• graphs/lists/tables

• report generation etc.

Fillets, chamfers.

Surface , volumes.

Holes and other details Etc.

ADVANTAGES: LIMITATIONS:

Saving time and money by

reducing the number of

prototypes required.

Accepts new design concept .

Improvements and

modifications

Commercial software packages

and the required hardware.

High investment cost

Gives solutions or results, not

remedies.

Analyst must be proficient

MATERIAL OF THE CHASSIS IS AS PER IS: - 9345

STANDARD IS STRUCTURAL STEEL WITH ST37

Material Property Value

Ultimate Tensile Strength 370 to 490 N/mm2

Modulus of elasticity 2.10 x 105 N / mm2

Poisson Ratio 0.29

Radius of Gyration R 114.30 m

Meshing is the process of breaking up the model into

smaller pieces that can be solved by the software using advanced

matrix math and then merged together to show the correct result

for the whole.

BC

• FIX SUPPORT

• CYLINDRIVCAL

SUPPORT

• TEMP ETC.

LOADS

• FORCE

• PRESSURE

• CONVECTIONS ETC.