Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/7516
Title: Structural damage detection using auto/cross-correlation functions under multiple unknown excitations
Authors: Ni, P
Xia, Y 
Law, SS
Zhu, S 
Keywords: auto/cross-correlation
Damage detection
Model updating
Output-only
Vibration response
Issue Date: 2014
Publisher: World Scientific
Source: International journal of structural stability and dynamics, 2014, v. 14, no. 5, 1440006 How to cite?
Journal: International journal of structural stability and dynamics 
Abstract: Traditional structural system identification and damage detection methods use vibration responses under single excitation. This paper presents an auto/cross-correlation function-based method using acceleration responses under multiple ambient white noise or impact excitations. The auto/cross-correlation functions are divided into two parts. One is associated with the structural parameters and the other with the energy of the excitation. These two parts are updated sequentially using a two-stage method. Numerical and experimental studies are conducted to demonstrate the accuracy and robustness of the proposed method. The effects of measurement noise and number of measurement points on the identification results are also studied.
URI: http://hdl.handle.net/10397/7516
ISSN: 0219-4554
EISSN: 1793-6764
DOI: 10.1142/S0219455414400069
Rights: © World Scientific Publishing Company
NOTICE: this is the author’s version of a work that was accepted for publication in Journal of Structural Stability and Dynamics. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Structural Stability and Dynamics, vol. 14, no. 5, 1440006 (2014), DOI: 10.1142/S0219455414400069
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