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剑杆织机送纬机构的弹性动力学分析 Introduction Theelasticdynamicanalysisofthewarpfeedingmechanismofrapierloomsisanimportantresearchtopicinthefieldoftextileengineering.Thewarpfeedingmechanismofrapierloomsplaysanimportantroleinensuringthequalityandefficiencyoffabricproduction.Inthispaper,wewillfocusontheelasticdynamicanalysisofthewarpfeedingmechanismofrapierlooms,andexplorethetheoreticalbasisandapplicationsignificanceofthisresearchtopic. Background Intheprocessofrapierloomfabricproduction,thewarpfeedingmechanismisresponsibleforthecontinuousfeedingofwarpyarnstotheloom.Thewarpfeedingmechanismconsistsofawarpbeam,awarplet-offdevice,awarptensioningsystem,andawarp-feedingmechanism.Amongthem,thewarp-feedingmechanismisthemostimportantpart,whichmainlyincludesthedrivingmechanism,theneedleguidemechanism,andtheweftinsertionmechanism.Thedrivingmechanismcontrolsthemotionoftherapierandtheshuttle,soastocompletetheweftinsertion.Theneedleguidemechanismguidesthewarpyarnsthroughtheshed,whichisformedbytheopeningofthewarpyarnsthroughthewarpshed.Theweftinsertionmechanisminsertstheweftyarnintothefabricthroughtheshed. Duringtheoperationofthewarpfeedingmechanism,thewarpyarnsaresubjectedtovariousforces,includingthetensionforce,thebendingforce,andthetorsionforce.Inordertoensurethestabilityandaccuracyofthewarpfeedingprocess,itisnecessarytoanalyzetheelasticdynamiccharacteristicsofthewarpfeedingmechanism. ElasticDynamicAnalysis Thewarpfeedingmechanismofrapierloomsisacomplexmechanicalsystemwithstrongnonlinearityandcoupling.Inordertoaccuratelyanalyzetheelasticdynamiccharacteristicsofthewarpfeedingmechanism,itisnecessarytoestablishamathematicalmodelofthesystemandusenumericalsimulationmethodstostudythedynamicresponseofthesystemunderdifferentworkingconditions. Themathematicalmodelofthewarpfeedingmechanismcanbeestablishedbasedontheprinciplesofmechanicsandmathematics.Thewarpyarnscanberegardedasaslenderrodwithaxialtensionandbending.Thewarplet-offdevicecanbesimplifiedasacantileverbeam,andthewarpbeamcanberegardedasarigidbody