GMN 0570TP-2004 Steering And Suspension Strength Test (Rim Pull)

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1、NorthAmericanENGINEERINGTestProcedureGMN0570TPSTANDARDS(Book)SteeringAndSuspensionStrengthTest(RimPull)Bedplate,3050mmx3050mm(10ftx10ft).1Introduction3.2Equipment.Note:Nothinginthespecification,however,supersedesapplicablelawsandregulations3.2.1Fiveanglestands

2、.unlessaspecificexemptionhasbeen3.2.2Fouradjustableanglestandbrackets.obtained.3.2.3Two“A“frameswithclevishangerstoNote:IntheeventofaconflictbetweentheholdthesuspensionintherequiredpositionforEnglishandthedomesticlanguage,theloading.Englishlanguageshalltakepre

3、cedence.3.2.4Torquearmequaltothelengthofthe1.1Purpose.rollingradius.Toevaluatethestrengthofsteering/front3.2.5Torquewrench0-150N-m(0-100lb-ft)suspensionsystemsandsupporting/interfaceforce.systemswhensubjectedtoa445N(100lb.)forceturningloadontherimofthevehicle3

4、.2.6Strainindicatorbox.designintentsteeringwheel.NOTE:Allinstrumentationistobecalibrated1.2Foreword.asrequired.Recordinstrumentationdetailsanddateofcalibrationunlesstheinformation1.3Applicability.isotherwisepreservedinthelaboratoryThistestprocedureappliestoall

5、vehiclesthatrecords.havemechanicalconnectionsbetweenthe3.2.7TestMaterial.steeringwheelandsteeringgear.3.2.7.1Onetothreecompletesteering1.4Definitions.gear/linkageassembliesstraingagedtoreadcomponentyieldatthehighstressareasper2ReferencesDesignEngineerorThermal

6、ImagingDevicetodeterminehighstresslocations.Note:Onlythelatestapprovedstandardsareapplicableunlessotherwisespecified.3.2.7.2Frontframesectionwithsufficientstructuretomaintainthefrontsuspension2.1Normative.componentsaccordingtodesignintentor2.2GM.vehicleswithfr

7、ontcradlesandunibodyconstructions.2.3Additional:3.3TestVehicle/TestPiece.TheJohnsonApparentElasticLimit(JAEL)isreferencedintheUniversalJointand3.4TestTime.DriveshaftDesignManual,AdvancesinCalendartime:days(range)EngineeringSeriesNo.7.PublishedbyTheSocietyofAut

8、omotiveEngineers,Inc.Testhours:hours(range)Coordinationhours:hours(range)3Resources3.5TestRequiredInformation.3.1Facilities.©Copyright2003GeneralMotorsCorporationAllRightsReservedO