Sánchez Crespo, R., Kaczmarczyk, S., Picton, P. and Su, H. (2015) Modelling and simulation of the nonstationary behaviour of high-rise elevator systems to predict the dynamic interactions between their components. Invited Presentation presented to: 5th Symposium on the Mechanics of Slender Structures (MoSS2015)), Northampton, UK, 21-22 September 2015. Northampton: The University of Northampton.
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Abstract:
Lateral vibrations of the suspension and compensating ropes in a high-rise elevator system are induced by the building motions. When the elevator is in motion the length of the ropes change so that the natural frequencies vary, rendering the dynamics of the system nonstationary. In this scenario large displacements of the ropes occur when a passage through resonance takes place. Due to the nonlinear coupling, interactions between the in-plane and out of plane directions occur. Furthermore, the car, counterweight and compensating sheave suffer from vertical vibrations due to the coupling with lateral vibrations of the ropes. This paper presents a comprehensive mathematical model of a high-rise elevator system which can predict the dynamic interactions taking place during its operation. A case study when the car is stationary at the top landing level corresponding to the resonance length of the ropes and starts to move downward to the bottom landing level will be discussed. The model is implemented in the MATLAB computational environment and the dynamic response of the system when the building is subjected to a low frequency sway, is determined through numerical simulation with the car following the kinematic profile dictated by the drive control algorithm. The results predict a range of nonlinear dynamic interactions between the components of the elevator system, during travel.
Creators:
Sánchez Crespo, R., Kaczmarczyk, S., Picton, P. and Su, H.
Editors:
Kaczmarczyk, S. and Mirhadizadeh, S.
Publisher:
The University of Northampton
Faculties, Divisions and Institutes:
Date:
21 September 2015
Date Type:
Publication
Title of Book:
Proceedings of the 5th Symposium on Mechanics of Slender Structures
Event Title:
5th Symposium on the Mechanics of Slender Structures (MoSS2015))
Event Dates:
21-22 September 2015
Place of Publication:
Northampton
Event Location:
Northampton, UK
Event Type:
Conference
Number of Pages:
6
Language:
English
Status:
Published / Disseminated
Refereed:
No
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