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1、AbstractAbstractThevigorousdevelopmentofthegridsystembringforwardthelargerandhigherrequirementstotheelectricitytransmissionsystem.Transmissiontowerhasavarietyofstructuralstyles,goodworkability,durabilityandgoodacrossability,soithasbeenadoptedincreasinglyinthepowertra
2、nsmission.Asahighvoltagetransmissioncarrier,long-spantransmissiontowerlinesystemengineeringisanimportantprojectlifeline,inwhichoneofthemostimportantisthehighvoltagetransmissiontower-linesystem.However,transmissiontoweralsohasitsinherentdisadvantages,suchasstructure,h
3、ighstiffnessandsoftproperties,whichmakeiteasiertogettheoutsideenvironmentinfluence.Atpresent,thesafetyinfluenceoftransmissiontowerlinesystemmainlyiswindinduceddisastersandicecoveraccident,inwhichtheaccidentofwireicecoverismoreworrying.Thispapermakesuseofthefiniteelem
4、entsoftwarethroughtotheKT3typehigh-voltagetransmissiontower-linesystemsimulation,firstlygotthetransmissiontower-lineinthestaticanddynamicsystemundertheactionofsomecharacteristics,nextadvancetheseparatemodelingandjointmodelingrespectively,andthendiscussedthecouplingef
5、fectbetweentowerlines.Theanalysisresultshowsthat:inthestaticaspect,theinfluencebetweensuspensioncableandsteelpylonisweak;inthedynamicsapect,thefrequencyofthetowerisslightlylowerthanthefrequencyofasingleoneinthecouplingbody.Andthen,wemadethestaticanddynamiccalculation
6、safterthewirewascoveringiceinviewoftheexistingmodel,obtainedrelationshipsofthestaticdisplacementafterthetransmissiontower-linesystemwascoveringiceandtheinternalforceoftransmissiontower-linesystemundertheeffectofdifferentcladdingicethickness,simulateddifferentconditio
7、nsofdeicingofthewire,andobservedtheinfluenceofthewireshakingtotheelectricpowerpylon.Finally,thesituationofonewirebrokenwassimulatedbyusingANYSYS/LS-DYNA,fromwhichwegotthedeformationanddistributionprocessofelectricpowerpylonclearlyandfoundthesensitiveareasandpartsofth
8、ecup-styleelectricpowerpylon.Alloftheseprovideareferenceforthedesignandinspectionworkinthefuture.KeywordsTransmissiontowerLinecover
