10 April 2008 Decentralized wireless structural sensing and control with multiple system architectures operating at different sampling frequencies
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Abstract
Recent years have seen growing interest in applying wireless sensing and embedded computing technologies for structural health monitoring and control. The incorporation of these new technologies greatly reduces system cost by eliminating expensive lengthy cables, and enables highly flexible system architectures. Previous research has demonstrated the feasibility of decentralized wireless structural control through numerical simulations and preliminary laboratory experiments with a three-story structure. This paper describes latest laboratory experiments that are designed to further evaluate the performance of decentralized wireless structural control using a six-story structure. Commanded by wireless sensors and controllers, semi-active magnetorheological (MR) dampers are installed between neighboring floors for applying real-time feedback control forces. Multiple centralized/decentralized feedback control architectures have been investigated in the experiments, in combination with different sampling frequencies. The experiments offer valuable insight in applying decentralized wireless control to larger-scale civil structures.
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Yang Wang, R. Andrew Swartz, Andrew Zimmerman, Amy C. Askin, Jerome P. Lynch, Kincho H. Law, Kung-Chun Lu, and Chin-Hsiung Loh "Decentralized wireless structural sensing and control with multiple system architectures operating at different sampling frequencies", Proc. SPIE 6935, Health Monitoring of Structural and Biological Systems 2008, 69350T (10 April 2008); doi: 10.1117/12.776624; https://doi.org/10.1117/12.776624
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