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1、OverviewofVDI2230AnIntroductiontotheCalculationMethodforDeterminingtheStressinaBoltedJointImportantNoteThissummaryoftheVDI2230Standardisintendedtoprovideabasicunderstandingofthemethod.Readerswhowishtoputthestandardtouseareurgedtorefertothecompletestandardthatcontainsalli
2、nformation,figures,etc.DefinitionsCovershigh-dutyboltedjointswithconstantoralternatingloadsBoltedjointsareseparablejointsbetweentwoormorecomponentsusingoneormoreboltsJointmustfulfillitsfunctionandwithstandworkingloadAimofCalculationDetermineboltdimensionallowingfor:Stren
3、gthgradeoftheboltReductionofpreloadbyworkingloadReductionofpreloadbyembeddingScatterofpreloadduringtighteningFatiguestrengthunderanalternatingloadCompressivestressonclampedparts1.RangeofValiditySteelBoltsM4toM39RoomTemperature2.ChoiceofCalculationApproachDependentupongeo
4、metryCylindricalsingleboltedjointBeamconnectionCircularplateRotationofflangesFlangedjointwithplanebearingfaceCylindricalSingleBoltedJointAxialforce,FATransverseforce,FQBendingmoment,MBBeamGeometry,Ex.1Axialforce,FATransverseforce,FQMomentoftheplaneofthebeam,MZBeamGeometr
5、y,Ex.2Axialforce,FATransverseforce,FQMomentoftheplaneofthebeam,MZRotationofFlangesAxialforce,FA(pipeforce)Bendingmoment,MBInternalpressure,pFlangedJointwithPlaneBearingFace,Ex.1Axialforce,FA(pipeforce)Torsionalmoment,MTMoment,MBFlangedJointwithPlaneBearingFace,Ex.2Axialf
6、orce,FA(pipeforce)Transverseforce,FQTorsionalmoment,MTMoment,MBFlangedJointwithPlaneBearingFace,Ex.3Axialforce,FA(pipeforce)Transverseforce,FQTorsionalmoment,MTMoment,MB3.AnalysisofForceandDeformationOptimizedbymeansofthoroughandexactconsiderationofforcesanddeformationsi
7、ncluding:ElasticresilienceofboltandpartsLoadanddeformationratioforpartsinassembledstateandoperatingstate4.CalculationStepsBeginswithexternalworkingload,FBWorkingloadandelasticdeformationsmaycause:Axialforce,FATransverseforce,FQBendingMoment,MBTorquemoment,MTDeterminingBo
8、ltDimensionsOnceworkingloadconditionsareknownallowfor:LossofpreloadtoembeddingAssemblypreloadreducedbyp
