GMN 0211TP-2002 Front Rear Suspension Knuckle Fatigue Under Braking Loads

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1、NorthAmericanENGINEERINGTestProcedureGMN0211TPSTANDARDSFront/RearSuspensionKnuckleFatigueUnderBrakingLoads1Introductionmanufacturerastheloadedaxleweightofasingleaxle.Thisprocedurewasre-writtenaccordingtothe1.4.3H–TheheightofthecenterofgravityGeneralMotorsNorth

2、Americaprocedureofthevehicleabovetheground.formatandtoincorporatealltestmethodsrelatingtodevelopmentandvalidationoffront1.4.4M–VehicleMass.andrearbrakeassemblies.1.4.5L–VehicleWheelbase.1.1Purpose.1.4.6RR–Rollingradius.ThestaticloadedThepurposeofthistestistode

3、terminetheradius(SLR)ofthelargestreleasedtirefatiguelifecharacteristicsofpassengercarandofthevehiclebeingtested.lightdutytruckfrontand/orrearsuspensionbrakecomponentswhensubjectedtorepeated1.4.7TirePatch–Thatpointdeterminedbyforwardandreversebrakingloads.thein

4、tersectionoftherollingradiusandthewheelcenterline.1.2Foreword.1.4.8a–Decelerationrate.Establishingthecriteriaforbrakereactionfatigueisdependentonbrakedesignandtest1.4.9g–Accelerationduetogravity;9.8methodology.Theactualrequirementsform/s2(32ft/sec2).validation

5、shouldbestatedintheSubSystemTechnicalSpecificationforeachmodelyearby1.4.10A–Decelerationratio(a/g).program.1.3Applicability.2ReferenceThistestprocedureappliestopassengercarsandlightdutytrucks.T.W.O.DescriptionFixturePhotosB.O.M.1.4Definitions.42M06-0562002GMT3

6、6002401XXX1.4.1GVW–GrossVehicleWeight.ThevaluespecifiedbythevehicleP9R03-44P1999GMT800021229824-590manufacturerastheloadedweightofaFrontK259824-591singleaxleandshallnotbelessthancustomercorr00D-282thesumoftheunloadedvehicleweight,ratedcargoload,and667N(150P0R1

7、3-082000GMT8000166799D-593pounds)timesthevehiclesseatingRearK15capacity.However,forschoolbuses,customercorrtheminimumoccupantweightallowanceshallbe534N(120pounds).2.1Normative.1.4.2GAWR–GrossAxleWeightRating.Notapplicable.Thevaluespecifiedbythevehicle©Copyrigh

8、tDateGeneralMotorsCorporationAllRightsReserved-GMConfidential-OriginatedDate:October,1987GMN0211TPRevisedDate:July,2001ApprovalDate:March,2002Page1of9GMNorthAmericanENGINEERINGSTAN