標題: Applying Time-Frequency Analysis on Earthquake Inputs and Structure Responses
作者: Huang, Chiung Shisnn
Su, Wei Chih
Chen, Liane Jye
Di Wang, Shing
土木工程學系
Department of Civil Engineering
關鍵字: short time Fourier transform;modal parameters;ARX
公開日期: 1-一月-2014
摘要: This work presents the use of a short time Fourier transform to identify the modal parameters (such as natural frequencies, damping ratios and mode shapes) of a structure from its earthquake responses data. The short time Fourier transform is applied to the measured acceleration responses of a structural system, and to reconstruct the autoregressive with exogenous input (ARX) model in time-frequency domain. The accuracy of this procedure is numerically confirmed; the effects of the remove frequency band and noise on the ability to accurately estimate the dynamic characteristics are also investigated.
URI: http://dx.doi.org/10.1109/IS3C.2014.322
http://hdl.handle.net/11536/129808
ISBN: 978-1-4799-5277-9
ISSN: 
DOI: 10.1109/IS3C.2014.322
期刊: 2014 INTERNATIONAL SYMPOSIUM ON COMPUTER, CONSUMER AND CONTROL (IS3C 2014)
起始頁: 1245
結束頁: 1248
顯示於類別:會議論文