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Adaptive Semiactive Cable Vibration Control: A Frequency Domain Perspective
Joint Authors
Source
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-08-10
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
An adaptive solution to semiactive control of cable vibration is formulated by extending the linear quadratic Gaussian (LQG) control from time domain to frequency domain.
Frequency shaping is introduced via the frequency dependent weights in the cost function to address the control effectiveness and robustness.
The Hilbert-Huang transform (HHT) technique is further synthesized for online tuning of the controller gain adaptively to track the cable vibration evolution, which also obviates the iterative optimal gain selection for the trade-off between control performance and energy in the conventional time domain LQG (T-LQG) control.
The developed adaptive frequency-shaped LQG (AF-LQG) control is realized by collocated self-sensing magnetorheological (MR) dampers considering the nonlinear damper dynamics for force tracking control.
Performance of the AF-LQG control is numerically validated on a bridge cable transversely attached with a self-sensing MR damper.
The results demonstrate the adaptivity in gain tuning of the AF-LQG control to target for the dominant cable mode for vibration energy dissipation, as well as its enhanced control efficacy over the optimal passive MR damping control and the T-LQG control for different excitation modes and damper locations.
American Psychological Association (APA)
Chen, Z. H.& Ni, Yiqing Qing. 2017. Adaptive Semiactive Cable Vibration Control: A Frequency Domain Perspective. Shock and Vibration،Vol. 2017, no. 2017, pp.1-12.
https://search.emarefa.net/detail/BIM-1204136
Modern Language Association (MLA)
Chen, Z. H.& Ni, Yiqing Qing. Adaptive Semiactive Cable Vibration Control: A Frequency Domain Perspective. Shock and Vibration No. 2017 (2017), pp.1-12.
https://search.emarefa.net/detail/BIM-1204136
American Medical Association (AMA)
Chen, Z. H.& Ni, Yiqing Qing. Adaptive Semiactive Cable Vibration Control: A Frequency Domain Perspective. Shock and Vibration. 2017. Vol. 2017, no. 2017, pp.1-12.
https://search.emarefa.net/detail/BIM-1204136
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1204136