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A platform for research: civil engineering, architecture and urbanism
Robust vibration control of flexible tensegrity structure via μ synthesis
μ synthesis is formed by combining the structured singular value concept and H∞ theory. The vibration control of the flexible tensegrity structure with mixed uncertainties via μ synthesis is presented. The uncertainties including parametric uncertainties of modal frequency and damping, the high‐frequency unmodeled dynamic uncertainty, and the uncertainties of sensors and actuators are analyzed. Based on the μ theory, the generalized control system of flexible structure is established. The robust stability and robust performance are analyzed in the standard framework of μ synthesis based on the μ controller which is designed by the D‐K iteration. Finally, the numerical simulation of a tensegrity structure is given. The simulation results show that μ controller can guarantee the closed‐loop system of the flexible tensegrity structure stable while exist the parametric perturbation and overflow problems simultaneously. μ controller takes greater control force to realize the rapider vibration attenuation compared with H∞ controller. The balanced realization of μ controller shows that the reduced order μ controller still meets the robust stability and performance requirements for the vibration control of the tensegrity structure. Copyright © 2011 John Wiley & Sons, Ltd.
Robust vibration control of flexible tensegrity structure via μ synthesis
μ synthesis is formed by combining the structured singular value concept and H∞ theory. The vibration control of the flexible tensegrity structure with mixed uncertainties via μ synthesis is presented. The uncertainties including parametric uncertainties of modal frequency and damping, the high‐frequency unmodeled dynamic uncertainty, and the uncertainties of sensors and actuators are analyzed. Based on the μ theory, the generalized control system of flexible structure is established. The robust stability and robust performance are analyzed in the standard framework of μ synthesis based on the μ controller which is designed by the D‐K iteration. Finally, the numerical simulation of a tensegrity structure is given. The simulation results show that μ controller can guarantee the closed‐loop system of the flexible tensegrity structure stable while exist the parametric perturbation and overflow problems simultaneously. μ controller takes greater control force to realize the rapider vibration attenuation compared with H∞ controller. The balanced realization of μ controller shows that the reduced order μ controller still meets the robust stability and performance requirements for the vibration control of the tensegrity structure. Copyright © 2011 John Wiley & Sons, Ltd.
Robust vibration control of flexible tensegrity structure via μ synthesis
Li, Tuanjie (author) / Ma, Yujuan (author)
Structural Control and Health Monitoring ; 20 ; 53-66
2013-02-01
14 pages
Article (Journal)
Electronic Resource
English
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