Proceedings Paper
Stochastic subspace identification for output-only modal analysis: accuracy and sensitivity on modal parameter estimation| Format | Member Price | Non-Member Price |
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Paper Abstract
In this study an output-only system identification technique for civil structures under ambient vibrations is carried out,
mainly focused on the Subspace System Identification (SSI) based algorithms. With the aim of finding accurate and true
modal parameters, a stabilization diagram is constructed by plotting the identified poles of the system with increasing the
size of data matrix. Comparative study between different approach, with and without Singular Spectrum Analysis to preprocess
the data, on determining the model order and selecting the true system poles is examined in this study.
Identification task of the real large scale structure: Guangzhou New TV Tower (GNTVT), a benchmark problem for
structural health monitoring of high-rise slender structures is carried out, for which the capacity of SSI-based algorithm
is demonstrated.
Paper Details
Date Published: 15 April 2011
PDF: 14 pages
Proc. SPIE 7981, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2011, 798149 (15 April 2011); doi: 10.1117/12.876619
Published in SPIE Proceedings Vol. 7981:
Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2011
Masayoshi Tomizuka, Editor(s)
PDF: 14 pages
Proc. SPIE 7981, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2011, 798149 (15 April 2011); doi: 10.1117/12.876619
Show Author Affiliations
Yi-Cheng Liu, National Taiwan Univ. (Taiwan)
Chin-Hsiung Loh, National Taiwan Univ. (Taiwan)
Published in SPIE Proceedings Vol. 7981:
Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2011
Masayoshi Tomizuka, Editor(s)
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