Critical assessment on parametric time-domain methods for the identification of vibrating structures

Chin-Hsiung Loh; Tsu-Hsiu Wu

doi:10.1117/12.538736

29 July 2004 Critical assessment on parametric time-domain methods for the identification of vibrating structures

Chin-Hsiung Loh, Tsu-Hsiu Wu

Proceedings Volume 5391, Smart Structures and Materials 2004: Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems; (2004) https://doi.org/10.1117/12.538736
Event: Smart Structures and Materials, 2004, San Diego, CA, United States

Abstract

For the identification of linear time-varying system, this study aims at a critical comparison and assessment of several recursive SISO (single-input single-output) parametric time-domain methods for the identification of seismic response of building structure. The methods are: • RLS method with constant trace, • RLS with variable forgetting, • Changing Spectrum Method, • RLS with selective forgetting, • wavelet analysis. For nonlinear system identification, this study aims at a critical assessment of the estimation of nonlinear restoring force. This study used the simulation seismic response data of a time-varying SDOF system and the full-scale pseudo-dynamic test data of a frame structure to discuss the characteristics of each method. Concise summaries of the methods, highlighting their principles and realizations, are provided.

Citation Download Citation

Chin-Hsiung Loh and Tsu-Hsiu Wu "Critical assessment on parametric time-domain methods for the identification of vibrating structures", Proc. SPIE 5391, Smart Structures and Materials 2004: Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems, (29 July 2004); https://doi.org/10.1117/12.538736

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