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http://dx.doi.org/10.5000/EESK.2005.9.1.071

Parameter Identification Using Static Compliance Dominant Frequencies  

Nam, Dong-Ho (Dannenbaum Engineering Co.)
Choi, Sang-Hyun (Korea Institute of Nuclear Safety)
Park, Soo-Yong (School of Architecture, Youngsan University)
Publication Information
Journal of the Earthquake Engineering Society of Korea / v.9, no.1, 2005 , pp. 71-78 More about this Journal
Abstract
This paper presents an improved system identification methodology for structural systems by applying static compliance dominant (SCD) frequencies. The existing sensitivity-based system identification technique is extended to adopt the static compliance dominant frequencies, and the performance of the additional spectral information, i.e., SCD frequencies, is compared with that of the natural frequencies only via a numerical example of a mechanical system. The results of the numerical study indicate that the additional use of the SCD frequencies improves accuracy in system identification problems.
Keywords
static compliance dominance frequency; system identification; natural frequency;
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