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On dynamic analysis and control of an elevator system using polynomial chaos and Karhunen-Loeve approaches

Colon, D., Cunha Jr, A., Kaczmarczyk, S. and Balthazar, J. (2017) On dynamic analysis and control of an elevator system using polynomial chaos and Karhunen-Loeve approaches. Procedia Engineering. 199, pp. 1629-1634. 1877-7058.

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Abstract:
The paper deals with the quantification of uncertainties in an elevator system, subjected to lateral vibration induced by the car guide rail irregularities, with and without a feedback control system. A mathematical model for the elevator system is derived, and a stochastic model for the rail profile irregularities is constructed. This model of uncertainties describes the rail profile as a random field, which is represented by means of Karhunen-Loeve expansion. Polynomial chaos is employed to compute the propagation of uncertainties through the stochastic model, in order to evaluate the disturbance rejection properties and robustness of the closed-loop system.
Additional Information:
Paper presented at 10th International Conference on Structural Dynamics (EURODYN 2017)
Uncontrolled Keywords:
Elevator systems, nonlinear dynamics, uncertainty quantification, polynomial chaos
Subjects:
T Technology > TJ Mechanical engineering and machinery > TJ1370 Elevators
T Technology > TJ Mechanical engineering and machinery > TJ170 Mechanics applied to machinery. Dynamics
Creators:
Colon, D., Cunha Jr, A., Kaczmarczyk, S. and Balthazar, J.
Publisher:
Elsevier
Faculties, Divisions and Institutes:
Faculties > Faculty of Arts, Science & Technology > Engineering
Date:
12 September 2017
Date Type:
Published Online
Page Range:
pp. 1629-1634
Journal or Publication Title:
Procedia Engineering
Volume:
199
Language:
English
DOI:
10.1016/j.proeng.2017.09.083
ISSN:
1877-7058
Status:
Published / Disseminated
Refereed:
Yes
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