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1、OverviewofVDI2230AnIntroductiontotheCalculationMethodforDeterminingtheStressinaBoltedJointImportantNoteThissummaryoftheVDI2230Standardisintendedtoprovideabasicunderstandingofthemethod.Readerswhowishtoputthestandardtouseareurgedtorefertothecompletestandardthatcont
2、ainsallinformation,figures,etc.DefinitionsCovershigh-dutyboltedjointswithconstantoralternatingloadsBoltedjointsareseparablejointsbetweentwoormorecomponentsusingoneormoreboltsJointmustfulfillitsfunctionandwithstandworkingloadAimofCalculationDetermineboltdimensiona
3、llowingfor:StrengthgradeoftheboltReductionofpreloadbyworkingloadReductionofpreloadbyembeddingScatterofpreloadduringtighteningFatiguestrengthunderanalternatingloadCompressivestressonclampedparts1.RangeofValiditySteelBoltsM4toM39RoomTemperature2.ChoiceofCalculation
4、ApproachDependentupongeometryCylindricalsingleboltedjointBeamconnectionCircularplateRotationofflangesFlangedjointwithplanebearingfaceCylindricalSingleBoltedJointAxialforce,FATransverseforce,FQBendingmoment,MBBeamGeometry,Ex.1Axialforce,FATransverseforce,FQMomento
5、ftheplaneofthebeam,MZBeamGeometry,Ex.2Axialforce,FATransverseforce,FQMomentoftheplaneofthebeam,MZRotationofFlangesAxialforce,FA(pipeforce)Bendingmoment,MBInternalpressure,pFlangedJointwithPlaneBearingFace,Ex.1Axialforce,FA(pipeforce)Torsionalmoment,MTMoment,MBFla
6、ngedJointwithPlaneBearingFace,Ex.2Axialforce,FA(pipeforce)Transverseforce,FQTorsionalmoment,MTMoment,MBFlangedJointwithPlaneBearingFace,Ex.3Axialforce,FA(pipeforce)Transverseforce,FQTorsionalmoment,MTMoment,MB3.AnalysisofForceandDeformationOptimizedbymeansofthoro
7、ughandexactconsiderationofforcesanddeformationsincluding:ElasticresilienceofboltandpartsLoadanddeformationratioforpartsinassembledstateandoperatingstate4.CalculationStepsBeginswithexternalworkingload,FBWorkingloadandelasticdeformationsmaycause:Axialforce,FATransv
8、erseforce,FQBendingMoment,MBTorquemoment,MTDeterminingBoltDimensionsOnceworkingloadconditionsareknownallowfor:LossofpreloadtoembeddingAssemblypreloadreducedbyp
