BIOEN 327 Solids and Fluids Laboratory Autumn 2013

Print date: 9/24/2013 1

SoftwareinBIOEN327:COMSOL,LabView,andSolidWorks

BIOEN327isasoftware‐intensivecourse,becauseengineeringinthe21stcenturyisasoftware‐intensivepursuit.Wewilllearnandusethreemajorsoftwarepackagesthatareconsideredindustrystandards.Eachhasitsownroleinthiscourseandinengineeringdesignandanalysis.

LabViewissoftwareforthereal‐timeacquisition,processingandvisualizationofmeasureddata.YoucandothesamemathematicalfunctionsinLabViewthatyoucandoinMATLAB,butLabViewisgoodforreal‐timeoperationswhileMATLABismoreefficientforpost‐processingandmathingeneral.YoucanputMATLABcommandsinsideaLabViewprogram,providingthebestofbothworlds.Ifyouwanttocreateandtestelectronicinstruments,orproduceacontrolsystemforasmalldeviceorlargeindustrialfacility,youwilleventuallywanttouseLabView.

Solidworksisusedtocreate3‐Ddrawingsthatmaybeusedtovisualizeyourdesigns,ortoprovideinstructionsformanufacturingor3‐Dprinting.ItiseasiertolearntheLabviewprogramminginterfacethantheSolidworksinterface,butyouneedhardwaretodoreallyinterestingstuffwithLabview,whereasitisfunjusttomakedrawingswithSolidworks.

Solidworksisonalimitednumberofcomputersandwehaveanevenmorelimitednumberoflicenses(concurrentusers)sonoteveryonecanuseitatonce.LabviewisinstalledonallofthecomputersinthePhysiologyandInstrumentationlabroomsandthereisnolimitonthenumberofusers.

COMSOLsimulatesphysicalprocessesbysolvingthepartialdifferentialequationsthatdescribetheseprocesses.Forexample,youcananalyzetheflowofbloodthroughacapillarytube,orstudythedeflectioninahypotheticalbone.Itcanalsocombineprocessessuchasheattransferandfluidflow,tocalculatehowmuchheatispassingfrommovingblood,intostaticskin,intoairmovingpasttheskin.

Bytheendofthecourse,youwillhavehadexposuretowhatIconsiderarethe“bigfour”engineeringsoftwareapplications:measurementandcontrol(Labview),signalanddataprocessing(MATLAB),engineeringdrawing/modeling(Solidworks,CATIA,Autodesk/AutoCAD,Rhino),andphysicalsimulation(COMSOL,ANSYS,CATIA,SolidWorks).Notethatdrawingsoftwareisincreasinglycombinedwithsimulationsoftware(e.g.Solidworks,CATIA)tocreatemulti‐functionmodelingsoftware.

OneofthefirsttopicsyouwillseeinBIOEN326issolidmechanics(stressandstrain),instructuresthatwecandraw.Inaddition,wewouldliketostartdrawingandcreatingobjectsformaterialtesting.Therefore,wewillstartthequarterwithSolidWorks.

BIOEN 327 Solids and Fluids Laboratory Autumn 2013

Print date: 9/24/2013 2

Labexperience1:IntroductiontoSolidWorks

TherearemanySolidWorks(SW)tutorialsontheInternet,frommanysources.WhetheryouuseYouTube,ortheHelpfilesinSW,orsomethingelse,youwillgetthesamebasicknowledge,butstillonlyafractionofthetricksandtechniquesavailableinthesoftware.Thefastestwaytolearnistohaveagoalandanexpertwithyoutoansweryourparticularquestions.Iamnotanexpertyet,sowewillbothbeturningtotheWebandthehelpfilesaswego.However,withjustthebasictechniqueswecandrawavarietyofusefulobjects,ormodels.

ThemodelswedrawwithSWareusedforavarietyofpurposes:

Tomakeillustrationsofourdesignsanddevices Tocreateengineeringdrawingsthatmanufacturerscanusetofabricateour

products Forrapidprototypingwitha3‐Dprinter AsinputstoSolidWorksphysicalmodelingandanimation ForexporttoCOMSOLorotherengineeringanalysissoftware.

InBIOEN327,weareprimarilyinterestedinillustrations,3‐Dprinting,andexporttoCOMSOL.

PARTI:FAMILIARIZATION

Wheretofindthesoftware

SolidWorksisinstalledintheInstrumentationandPhysiologylabs(FoegeN133andN151).

Wehavealicensethatallowsabout10studentstousethesoftwaresimultaneouslyonanyofthecomputerslistedabove,butnotallofthematthesametime.BecausewehaveonlyalimitednumberofseatsforusingSWintheteachinglabs,youarerequestednottouseSWoutsideoflabwhentheotherlabsectionsareusingitinclass.However,atothertimesfeelfreetousethesoftwareinthelab.Wedonotplantoputitontheremoteserver.YoumayalsopurchasethestudentversionofSWattheUWBookstoreandinstallitonwhatevermachineyoulike.

Howtostartthesoftware

Ibetyoucanfigurethisoutforyourselves,butjustforcompleteness…

Startbutton>>Allprograms>>Solidworks2012>>Solidworks2012x64

Suggestedtutorialsites

IstartedwiththetutorialfoundviaHelp>>SolidWorkstutorials.Asabeginner,IfoundIntroductiontoSolidWorks,Lesson1:PartsandLesson2:Assembliestobeuseful.

BIOEN 327 Solids and Fluids Laboratory Autumn 2013

Print date: 9/24/2013 3

Ifyoupreferavideointroduction,youmightwanttoviewtheGettingStartedwithSolidworksseries:

http://www.solidworks.com/sw/resources/getting‐started‐with‐solidworks.htm

StartwithIntroduction:3DDesignOverview,whichhasthreeparts.

The1stpart,“SolidWorksfor3DDesign,”isinteresting,notbecauseitintroducesSolidWorks,butbecauseitdiscussesthestepsinvolvedinengineeringdesign(startingatminute2).ItisalsoatopicthatisfeaturedinJuniorKickoff.

The2ndpart,“SolidworksIntuitiveUserInterface”isnotasuseful.Themostimportantinformationisthattherearegoodtutorialsbuiltintothesoftware.

The3rdpart,“DesignUnitSystems”startswithadiscussionofunits(e.g.mm),whichyoushouldlearn.Skiptherestcoveringdraftingstandards.

NowgotoLessonOne:Parts.Thefirsttwovideosonthispagearenotinteresting,butthenextfourareveryuseful,andthelasttwoaregoodifyouwanttomakeshellstructures.Definitelyview“Insertingyourfirst3Dfeature.”

NowgotoLessonTwo:Assemblies.Section1,“Creatingyourfirst3Dassembly,”isOK,butsection2,“Techniques”isbetter.Itdescribesmates,whichyouwilluseinahipimplantmodel.

Thevideotutorialsoccasionallygothroughtheprocessofnavigatingfolderbyfoldertothesetofexamplestheyuse.IncaseyouwouldprefertopastethepathintoWindowsExplorer,hereitis:C:\ProgramFiles\SolidWorks\SolidWorks\samples\introsw

Ifyouhavegonethroughthetutorialorvideosmentionedabove,andtriedthecommandsyourself,youareprobablyreadytodrawthespike,ballandcupthatmightbeusedtoperformhipreplacementsurgery.

P.S.Ifyoulikedrawingtoys,youmightenjoyCudaCountry.NotetheBeam(actuallyatruss,asyouwilllearninBIOEN326)includesastressanalysis.NotealsothatafewofthetutorialsarewrittenforSolidWorks2013,whileweareusingSolidWorks2012intheBioEteachinglabs.