Dynamic modeling and experiments on the coupled vibrations of building and elevator ropes

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• 作者：Dong-Ho Yang^a ; Ki-Young Kim^b ; Moon K. Kwak^a ; ^{kwakm@dongguk.edu} ; Seungjun Lee^a
• 关键词：Elevator vibration ; Rope vibration ; Coupled building-rope vibration
• 刊名：Journal of Sound and Vibration
• 出版年：2017
• 出版时间：3 March 2017
• 年：2017
• 卷：390
• 期：Complete
• 页码：164-191
• 全文大小：3130 K
• 卷排序：390

文摘

This study is concerned with the theoretical modelling and experimental verification of the coupled vibrations of building and elevator ropes. The elevator ropes consist of a main rope which supports the cage and the compensation rope which is connected to the compensation sheave. The elevator rope is a flexible wire with a low damping, so it is prone to vibrations. In the case of a high-rise building, the rope length also increases significantly, so that the fundamental frequency of the elevator rope approaches the fundamental frequency of the building thus increasing the possibility of resonance. In this study, the dynamic model for the analysis of coupled vibrations of building and elevator ropes was derived by using Hamilton's principle, where the cage motion was also considered. An experimental testbed was built to validate the proposed dynamic model. It was found that the experimental results are in good agreement with the theoretical predictions thus validating the proposed dynamic model. The proposed model was then used to predict the vibrations of real building and elevator ropes.