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首页 弹簧

弹簧.pdf

弹簧

yezi
2012-03-20 0人阅读 举报 0 0 暂无简介

简介:本文档为《弹簧pdf》,可适用于人文社科领域

UniversityofSouthernQueenslandFacultyofEngineeringandSurveyingSteeringSystemandSuspensionDesignforFormulaSAEARacerCarAdissertationsubmittedbyCristinaElenaPopainfulfilmentoftherequirementsofCoursesENGandResearchProjecttowardsthedegreeofBachelorofEngineering(Mechanical)Submitted:OctoberAbstractThedissertationdocumentsthedesignprojectforthesteeringsystemandsuspensionoftheFormulaSAEAracercarmadeattheUniversityofSouthernQueenslandThedissertationincludesareviewofcurrentautomotivesteeringandsuspensionsystemsfollowedbythereviewofFormulaSAEArestrictionsanddesignrequirementsAthoroughanalysisofUSQracercarhasbeenincludedinordertoestablishtheareasofdesignmodificationsfollowedbytheactualdesignwithallthetechnicalspecificationsrequiredUniversityofSouthernQueenslandFacultyofEngineeringandSurveyingENGResearchProjectLimitationsofUseTheCounciloftheUniversityofSouthernQueensland,itsFacultyofEngineeringandSurveying,andthestaffoftheUniversityofSouthernQueensland,donotacceptanyresponsibilityforthetruth,accuracyorcompletenessofmaterialcontainedwithinorassociatedwiththisdissertationPersonsusingalloranypartofthismaterialdosoattheirownrisk,anddonotattheriskoftheCounciloftheUniversityofSouthernQueensland,itsFacultyofEngineeringandSurveyingorthestaffoftheUniversityofSouthernQueenslandThisdissertationreportsaneducationalexerciseandhasthepurposeorvaliditybeyondthisexerciseThesolepurposeofthecoursepairentitled“ResearchProject”istocontributetotheoveralleducationwithinthestudent’schosendegreeprogramThisdocument,theassociatedhardware,software,drawings,andothermaterialsetoutintheassociatedappendicesshouldnotbeusedforanyotherpurpose:iftheyaresoused,itisentirelyattheriskoftheuserProfGBakerDeanFacultyofEngineeringandSurveyingiiCertificationIcertifythattheideas,designsandexperimentalwork,results,analysesandconclusionssetoutinthisdissertationareentirelymyowneffort,exceptwhereotherwiseindicatedandacknowledgedIfurthercertifythattheworkisoriginalandhasnotbeenpreviouslysubmittedforassessmentinanyothercourseorinstitution,exceptwherespecificallystatedCRISTINAELENAPOPAStudentnumber:SignatureDateiiiAcknowledgementsTheauthorofthisdissertationwouldliketothankthefollowingpeople:MrChrisSnook,ProjectSupervisor,LecturerattheUniversityofSouthernQueensland,forhishelpfuladviceandsupportthroughoutthedurationofthisprojectMrSelvanPather,LecturerattheUniversityofSouthernQueensland,forhisadviceMrBruceLlewellynforhisdonationofasteeringboxandhistimeandefforttomodifyitMrMartinCorcoran,LinearBearingsPtyLtd,forhisgenerousdonationofrodendsandsphericalbearingsMrChrisGallaganandMrBrianAstonattheUniversityofSouthernQueensladworkshopfortheirpatienceandadviceMrRayMalpres,forhisadvice,patience,timeandeffortdedicatedtothisprojectMissMelindaPlank,UniversityofSouthernQueenslandDesignTeamMemberforherunwaveringsupportwithfundraisingandpromotionforthisprojectCRISTINAPOPAUniversityofSouthernQueenslandOctoberiTableofContentsAcknowledgementsiiiTableofContentsiTableofFiguresChapteriIntroductioniProjectobjectiveiOverviewoftheFormulaSAEACompetitioniVehiclerequirementsChapterBackgroundAutomobilesuspensionsystemsSpringsTerminologyusedinthestudyofspringsCoilspringsLeafspringsTorsionbarspringsAirspringsShockabsorbersOilfilledshockabsorberGaschargedshockabsorbersReservoirshockabsorbersStrutsTiresasspringsRadialTiresBiasplytiresBiasbeltedtyresSuspensiontypesDependentsuspensionsystemsIndependentsuspensionsystemsiiFrontandrearsuspensiondesignSteeringsystemManualsteeringsystemsWormandsectorsteeringWormandtaperedpegsteeringWormandrollersteeringgearManualrecirculatingballandsectorsteeringManualrackandpinionsteeringPowerassistedsteeringsystemPowerrackandpinionPowerrecirculatingballGeometryparametersinvolvedinsuspensionandsteeringWheelcamberCamberangleRateofcamberchangeWheelcasterCasterangleRateofcasterchangeKingpingeometryKingpininclinationKingpinoffsetWheeltoeStatictoeangleStatictoeAckermannsteeringSuspensionkinematicparametersInstantaneouscentreRollcentreRollcentrelocationRollresistancearmRolloverarmJackingiiiChapterAnalysisoftheracecarfordesignchangesAnalysisofcarsteeringsystemSteeringsystemgeometrySteeringsystemmechanismAnalysisofcarsuspensionsystemSuspensionsystemtypeSuspensionsystemcomponentsHubaxleUprightsControlarmsandsuspensionarmSpringsanddampersMountingpointsChapterDesignconstrainsDesignconstrainssetbytheFormulaSAErulesWheelbaseandvehicleconfigurationVehicletrackWheelsSuspensionSteeringSteeringwheelFastenersOtherdesignconstrainsChapterSteeringsystemdesignSteeringsystemrequirementsDesignofthesteeringsystemgeometryAckermannconditionSelectionofthesteeringparametersSelectionofthesteeringmechanismPositionofthesteeringmechanismPositionrelativetothefrontaxlePositioninaverticalplaneivBumpsteergeometrySteeringmovementratioQuickreleasemechanismChapterSuspensionsystemdesignDesignapproachSuspensiontypeandgeometryselectionWheelselectionWheelbase,trackwidthandpivotpointslocationGeometryparametersselectionSuspensioncomponentsdesignHubaxleUprightsMethodoffabricationMaterialselectionDesignconceptsControlarms(wishbones)andsuspensionarmMaterialselectionDesignconceptMountingpointsSprings,shockabsorbersandantirollbarsPositionofthespringandshockabsorbersSpringratesandwheelratesShockabsorbersAntirollbarsChapterSteeringandsuspensionalignmentEquipmentProceduresformeasuringandadjustingsuspensionStaticalignmentEstablishingalevelsurfaceAdjustingthespringsMeasuringandadjustingtherideheightMeasuringandadjustingcastorvMeasuringandadjustingcamberMeasuringandadjustingtoeBumpsteerRecordingdataChapterConclusionsAchievementofobjectivesRecommendationsReferencesBibliographyAppendixAProjectSpecificationAppendixBFiniteElementReportForHubAxleProblemdescriptionGeneralapproachMeshingthemodelSolutionConclusionsRecommendationsAppendixCFiniteElementAnalysisforFrontUprightGeneralapproachAnalysisofsuspensionpivotpointsAnalysisofbrakecallipermountingpointsAnalysisofsteeringarmFinalConclusionsandrecommendationsAppendixDProductionDrawingsAppendixEPhotographs

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