Modelling and simulation of a stationary high-rise elevator system to predict the dynamic interactions between its components

Rafael Sánchez Crespo, Stefan Kaczmarczyk, Philip Picton, Huijuan Su

Research output: Contribution to journalArticleResearchpeer-review

Abstract

In a high-rise elevator system lateral vibrations of the suspension and compensating ropes, coupled with vertical motions of the car and counterweight are induced by the building structure motions. When the frequency of the building coincides with the fundamental natural frequency of the ropes, large resonance whirling motions of the ropes result. This phenomenon leads to impacts of the ropes on the elevator walls, large displacements of the car and counterweight making the building and elevator system unsafe. This paper presents a comprehensive mathematical model of a high-rise elevator system taking into account the combined lateral stiffness of the roller guides and guide rails. The results and analysis presented in the paper demonstrate frequency curve veering phenomena and a wide range of resonances that occur in the system. A case study is presented when the car is parked at a landing level where the fundamental natural frequencies of the car, suspension and compensating rope system coincide with one of the natural frequencies of the high-rise building. The results show a range of nonlinear dynamic interactions between the components of the elevator system that play a significant role in the operation of the entire installation.
Original languageEnglish
Pages (from-to)24-45
Number of pages22
JournalInternational Journal of Mechanical Sciences
Volume137
Early online date11 Jan 2018
DOIs
Publication statusPublished - 1 Mar 2018

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Elevators
Railroad cars
Natural frequencies
Landing
Rails
Stiffness
Mathematical models

Keywords

  • Curve veering phenomena
  • High-rise elevator system
  • Modelling
  • Nonlinear dynamic interactions
  • Numerical simulation
  • Rope vibration

Cite this

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title = "Modelling and simulation of a stationary high-rise elevator system to predict the dynamic interactions between its components",
abstract = "In a high-rise elevator system lateral vibrations of the suspension and compensating ropes, coupled with vertical motions of the car and counterweight are induced by the building structure motions. When the frequency of the building coincides with the fundamental natural frequency of the ropes, large resonance whirling motions of the ropes result. This phenomenon leads to impacts of the ropes on the elevator walls, large displacements of the car and counterweight making the building and elevator system unsafe. This paper presents a comprehensive mathematical model of a high-rise elevator system taking into account the combined lateral stiffness of the roller guides and guide rails. The results and analysis presented in the paper demonstrate frequency curve veering phenomena and a wide range of resonances that occur in the system. A case study is presented when the car is parked at a landing level where the fundamental natural frequencies of the car, suspension and compensating rope system coincide with one of the natural frequencies of the high-rise building. The results show a range of nonlinear dynamic interactions between the components of the elevator system that play a significant role in the operation of the entire installation.",
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Modelling and simulation of a stationary high-rise elevator system to predict the dynamic interactions between its components. / Sánchez Crespo, Rafael; Kaczmarczyk, Stefan; Picton, Philip; Su, Huijuan.

In: International Journal of Mechanical Sciences, Vol. 137, 01.03.2018, p. 24-45.

Research output: Contribution to journalArticleResearchpeer-review

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AB - In a high-rise elevator system lateral vibrations of the suspension and compensating ropes, coupled with vertical motions of the car and counterweight are induced by the building structure motions. When the frequency of the building coincides with the fundamental natural frequency of the ropes, large resonance whirling motions of the ropes result. This phenomenon leads to impacts of the ropes on the elevator walls, large displacements of the car and counterweight making the building and elevator system unsafe. This paper presents a comprehensive mathematical model of a high-rise elevator system taking into account the combined lateral stiffness of the roller guides and guide rails. The results and analysis presented in the paper demonstrate frequency curve veering phenomena and a wide range of resonances that occur in the system. A case study is presented when the car is parked at a landing level where the fundamental natural frequencies of the car, suspension and compensating rope system coincide with one of the natural frequencies of the high-rise building. The results show a range of nonlinear dynamic interactions between the components of the elevator system that play a significant role in the operation of the entire installation.

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