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Appl. Sci. 2017, 7(4), 313; doi:10.3390/app7040313

Influence Analysis of a Higher-Order CSI Effect on AMD Systems and Its Time-Varying Delay Compensation Using a Guaranteed Cost Control Algorithm

1
School of Civil and Environment Engineering, Shenzhen Graduate School, Harbin Institute of Technology, Shenzhen 518055, Guangdong, China
2
Department of Civil and Environmental Engineering, University of Surrey, Guildford GU2 7XH, UK
*
Authors to whom correspondence should be addressed.
Academic Editor: César M. A. Vasques
Received: 12 February 2017 / Revised: 16 March 2017 / Accepted: 20 March 2017 / Published: 23 March 2017
View Full-Text   |   Download PDF [3305 KB, uploaded 23 March 2017]   |  

Abstract

A control-structure interaction (CSI) effect commonly exists between an active mass damper/driver (AMD) system with a DC motor and a controlled building. Additionally, its higher-order component leads to the fact that the actual control force acts behind its theoretical time; i.e., time delay. In this paper, the main influencing factors of a higher-order CSI effect are analyzed, including the input frequency of the control voltage, the structural parametric uncertainties, and the control gains. In addition, a new time-delay compensation controller based on a guaranteed cost control (GCC) algorithm is designed, to consider the higher-order CSI effect for multi-level steel frame structures. Experiments on a typical four-storey frame are conducted, to verify the performances of the proposed method. The results show that the proposed controller has an excellent control effect and stable control parameters, even under the situation of large parametric uncertainties and long time-varying delays. View Full-Text
Keywords: vibration control; active mass damper/driver; control-structure interaction; time-varying delay; guaranteed cost control vibration control; active mass damper/driver; control-structure interaction; time-varying delay; guaranteed cost control
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Chen, C.; Li, Z.; Teng, J.; Wang, Y. Influence Analysis of a Higher-Order CSI Effect on AMD Systems and Its Time-Varying Delay Compensation Using a Guaranteed Cost Control Algorithm. Appl. Sci. 2017, 7, 313.

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