Analysis and control of vibration of ropes in a high-rise elevator under earthquake excitation-中国期刊网

摘要 Inthisresearch,thevibrationofelevatorropes,includingthemainropeandcompensationropeareinvestigatedsimultaneouslyinahigh-riseelevatorsystemunderearthquakeexcitation.Moreover,thepaperpresentsanewcontrolmethodtorestraintheswayofbothropes.Thisstudyconsidersvaryingropelengthsduringelevatoroperationwhichcauseothersystemparameterssuchasnaturalfrequency,anddampingratiotobetime-variantvariables.Thedynamicsoftheropesareanalyzedbysolvingthegoverningnon-stationary,nonlinearequationnumerically.Inordertomitigatethevibrationofropesinseveralmotionconditions,particularlyupwardsmovement,downwardmovement,stoppedatthelowestposition,andstoppedatthehighestposition,anactiveequipmentisinstalledatthecompensationsheave.Thestabilityofthesystemusingthecontrollerisanalyzedatfourstates:withoutdisturbanceandstaticcar,withoutdisturbanceandmobilecar,includingdisturbanceandstaticcar,andincludingdisturbanceandmobilecar.Theefficiencyofthecontrollerusedfordampeningthevibrationofelevatorropesisvalidatedbynumericalsimulationresults.

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Analysis and control of vibration of ropes in a high-rise elevator under earthquake excitation

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Analysis and control of vibration of ropes in a high-rise elevator under earthquake excitation

来源期刊

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