GMW 14473-2006 Durability of Plastic and Elastomer Parts in Combination

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1、WORLDWIDETestProcedureENGINEERINGGMW14473ChassisSTANDARDSDurabilityofPlasticandElastomerPartsinCombinationwithMetalPartsforces.Measurethetestamplitudesatthe1Scoperespectivetestfrequencywiththedistancesensorinthehydraulicactuator.Note:Nothinginthestandardsupersede

2、sapplicablelawsandregulationsunlessspecific3.2.1.1.1CascadeControl.Thetestforceisexemptionhasbeenobtained.appliedtothetestpartexactlysinusoidally(commandsignal).Forthenon-linearNote:IntheeventofconflictbetweentheEnglishcharacteristicsofelastomercomponents,aanddom

3、esticlanguage,theEnglishlanguageshallcascadecontrolunitcorrectsthissignaltothetakeprecedence.smallestdeviationofnon-linearity(feedback1.1Purpose.Durabilityofplasticandelastomersignal).Theaperiodicborderlinecaseofasquarepartswhencombinedwithmetalpartsandwhensignal

4、introducedisapplicableforoptimization.subjectedto+23±5°C.3.2.1.1.2ControlofPeakValues.DuringtheDeterminationofthefatiguelifeoftestpartsinaentiredurabilitytest,min.andmax.valuesarekeptsinglestepdurabilitytesttoadefinednumberofonaconstantleveltoassureareliableevalu

5、ationcyclesoruntilfailure(forhydromountsandhydroofdisplacementchanges.bushingsadditionaltestoffluidloss).3.2.1.2RecordingofHysteresisData.1.2Foreword.Notapplicable.(Applicabletorecordingofmin.andmax.forces1.3Applicability.Forplasticandelastomerpartsandforevaluati

6、onofsetinparagraph7.1.1only).oftheenginemount.Theloadcell(loadrange:±10kNstatically,incertaincases±25kNstatically)suppliestheforce2Referencesvalues,thedisplacementsensor(displacement:Note:Onlythelatestapprovedstandardsare±50mm)installedinthehydraulicactuatorappli

7、cableunlessotherwisespecified.suppliesthedisplacementvalues.Theforce-displacementcouplesformingthehysteresisshall2.1ExternalStandards/Specifications.berecordedsimultaneously.DIN53513DIN53535Forthespecificationtodrawing,thehysteresisof2.2GMStandards/Specifications

8、.thestartingcycle(100cycles)andthecycleNonesubsequenttothespecifiednumberofcyclesshallberecordedduringthedurabilitytestandbeputintorelation.(Thissystemmaybeuse