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1、附录AFormulaSAEisastudentcompetitionsponsoredbySocietyofAutomotiveEngineers(SAE),werestudentsdesign,build,andcompetewithasmallformulastyleracecar.Thebasisofthecompetitionisthatafictitiouscompanyhascontractedagroupofengineerstobuildasmallformulacar.Sincethecar
2、isintendedfortheweekendautocrossracer,thecompanyhassetamaximumpriceof$8,500.Theracecarisalsolimitedtoasingle610ccdisplacementenginewithasingleinletrestrictor.Othermajorrulesrequirethatthecarmusthaveasuspensionsystemwithaminimumwheeltravelof50mmandawheelbase
3、greaterthan1524mm.Theremainderoftherulesdefinesafetyrequirementssuchassideimpactprotection.Thecompetitionisseparatedintostaticanddynamicevents.Thestaticeventsincludethecostnalysis,salespresentation,andengineeringdesign.Thedynamicportionsofthecompetitionaret
4、he15.25mdiameterskid-pad,91.44maccelerationevent,0.8kmautocross,44kmendurancerace,andfueleconomy.TheFSAEcompetitionhasbeenestablishedtoprovideaneducationalexperienceforcollegestudentsthatisanalogoustothetypeofprojectstheywillfaceintheworkforce.Toparticipate
5、inFSAE,studentgroupsworkwithaprojectfromtheabstractdesignuntilitiscompleted.Theaspectsofengineeringdesign,teamwork,projectmanagement,andfinancehavebeenincorporatedintothebasicrulesofFormulaSAE.Thispaperisintendedtocoversomeofthebasicconceptsofsuspensionandf
6、ramedesignandalsohighlightstheapproachUM-Rollausedwhendesigningtheir1996suspensionandframe.Thesuspensionsectionaddressesthebasicdesignparametersandpresentsspecificexamples.Next,theframesectiondiscusseshowtoachieveacompromisewiththeFSAEdesignconstraints.Fina
7、lly,thedesignsectiongivesabriefoverviewofthedesignmethodologyusedbyUM-Rollaforthe1996racecar.1.SuspensionGeometryFSAEsuspensionsoperateinanarrowrealmofvehicledynamicsmainlyduetothelimitedcorneringspeedswhicharegovernedbytheracetracksize.Therefore,FSAEsuspen
8、siondesignshouldfocusontheconstraintsofthecompetition.Forexample,vehicletrackwidthandwheelbasearefactorsgoverningthesuccessofthecar'shandlingcharacteristics.Thesetwodimensionsnotonlyinfluenceweighttran
