10 April 2007 Continuous time parameter estimation of multi-story buildings
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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.
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David Ma, David Ma, Ning-Shou Xu, Ning-Shou Xu, } "Continuous time parameter estimation of multi-story buildings", Proc. SPIE 6529, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2007, 65291V (10 April 2007); doi: 10.1117/12.715326; https://doi.org/10.1117/12.715326
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