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Proceedings Paper

Continuous time parameter estimation of multi-story buildings
Author(s): David Ma; Ning-Shou Xu
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Paper Abstract

Two parameter estimation approaches have been developed for system modeling and health monitoring of multi-story buildings based on structural vibration responses under seismic excitation and/or applied forces. In the first approach, parameter estimation is performed in a decentralized fashion, i.e. parameters are estimated for each story individually, while in the second approach, the parameters are estimated in a centralized manner for the entire structure. In order to reduce the effect of random noise, drift with D.C. off-set as well as low-frequency disturbances in the measured data, three kinds of filter (i.e., high-pass filter, moving average filter and Kalman filter) have been used for data preprocessing. Numerical simulations based on lumped parameter models and a finite element model of a realistic building have been conducted. The results show that, the performance of the decentralized approach is better than the centralized one in the cases studied.

Paper Details

Date Published: 10 April 2007
PDF: 8 pages
Proc. SPIE 6529, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2007, 65291V (10 April 2007); doi: 10.1117/12.715326
Show Author Affiliations
David Ma, Univ. of Hawaii at Manoa (United States)
Ning-Shou Xu, Univ. of Hawaii at Manoa (United States)


Published in SPIE Proceedings Vol. 6529:
Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2007
Masayoshi Tomizuka; Chung-Bang Yun; Victor Giurgiutiu, Editor(s)

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