Suppression of transverse vibration of elevator rope using vertical vibration of counterweight

An elevator rope for high-rise building is forcibly excited by the displacement of the building caused by earthquakes and wind forces. In high-rise building, the elevator rope may resonate with the natural frequency of the building; hence, effective solution to reduce the rope displacement is demand...

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Main Authors: Ibuki HIROSE, Hiroyuki KIMURA, Kou OGAWA
Format: Article
Language:Japanese
Published: The Japan Society of Mechanical Engineers 2015-06-01
Series:Nihon Kikai Gakkai ronbunshu
Subjects:
Online Access:https://www.jstage.jst.go.jp/article/transjsme/81/827/81_15-00102/_pdf/-char/en
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author Ibuki HIROSE
Hiroyuki KIMURA
Kou OGAWA
author_facet Ibuki HIROSE
Hiroyuki KIMURA
Kou OGAWA
author_sort Ibuki HIROSE
collection DOAJ
description An elevator rope for high-rise building is forcibly excited by the displacement of the building caused by earthquakes and wind forces. In high-rise building, the elevator rope may resonate with the natural frequency of the building; hence, effective solution to reduce the rope displacement is demanded. In this paper, a method to suppress the transverse vibration of elevator rope using vertical vibration of counterweight is proposed. Rope lateral vibration is controlled by fluctuating rope tension using up-and-down motion of this counterweight. Finite difference analyses of rope vibration with counterweight are performed to verify the validity of this method. Experiments involving forced vibration of a rope whose length is constant are performed. In the experiments, guide bar is used to suppress the rotation motion of the rope. As a result, rope sway is reduced to about 1/2, when the cage is stopped. The optimal natural frequency of vertical vibration of counterweight is about 2 times of the natural frequency of the rope lateral vibration.
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spelling doaj.art-333c2dd7e8b2437ebd834d8b1348600a2022-12-22T04:35:28ZjpnThe Japan Society of Mechanical EngineersNihon Kikai Gakkai ronbunshu2187-97612015-06-018182715-0010215-0010210.1299/transjsme.15-00102transjsmeSuppression of transverse vibration of elevator rope using vertical vibration of counterweightIbuki HIROSE0Hiroyuki KIMURA1Kou OGAWA2Graduate School of Science and Engineering for Education, Toyama UniversityGraduate School of Science and Engineering for Reseach, Toyama UniversityFacuity of Engineering, Toyama UniversityAn elevator rope for high-rise building is forcibly excited by the displacement of the building caused by earthquakes and wind forces. In high-rise building, the elevator rope may resonate with the natural frequency of the building; hence, effective solution to reduce the rope displacement is demanded. In this paper, a method to suppress the transverse vibration of elevator rope using vertical vibration of counterweight is proposed. Rope lateral vibration is controlled by fluctuating rope tension using up-and-down motion of this counterweight. Finite difference analyses of rope vibration with counterweight are performed to verify the validity of this method. Experiments involving forced vibration of a rope whose length is constant are performed. In the experiments, guide bar is used to suppress the rotation motion of the rope. As a result, rope sway is reduced to about 1/2, when the cage is stopped. The optimal natural frequency of vertical vibration of counterweight is about 2 times of the natural frequency of the rope lateral vibration.https://www.jstage.jst.go.jp/article/transjsme/81/827/81_15-00102/_pdf/-char/enelevatorrope swayflexible structurecoupled vibrationfinite-difference methodforced vibration
spellingShingle Ibuki HIROSE
Hiroyuki KIMURA
Kou OGAWA
Suppression of transverse vibration of elevator rope using vertical vibration of counterweight
Nihon Kikai Gakkai ronbunshu
elevator
rope sway
flexible structure
coupled vibration
finite-difference method
forced vibration
title Suppression of transverse vibration of elevator rope using vertical vibration of counterweight
title_full Suppression of transverse vibration of elevator rope using vertical vibration of counterweight
title_fullStr Suppression of transverse vibration of elevator rope using vertical vibration of counterweight
title_full_unstemmed Suppression of transverse vibration of elevator rope using vertical vibration of counterweight
title_short Suppression of transverse vibration of elevator rope using vertical vibration of counterweight
title_sort suppression of transverse vibration of elevator rope using vertical vibration of counterweight
topic elevator
rope sway
flexible structure
coupled vibration
finite-difference method
forced vibration
url https://www.jstage.jst.go.jp/article/transjsme/81/827/81_15-00102/_pdf/-char/en
work_keys_str_mv AT ibukihirose suppressionoftransversevibrationofelevatorropeusingverticalvibrationofcounterweight
AT hiroyukikimura suppressionoftransversevibrationofelevatorropeusingverticalvibrationofcounterweight
AT kouogawa suppressionoftransversevibrationofelevatorropeusingverticalvibrationofcounterweight