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 |
Issue Date: | 2014 | Source: | International journal of structural stability and dynamics, 2014, v. 14, no. 5, 1440006 | 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. | Keywords: | auto/cross-correlation Damage detection Model updating Output-only Vibration response |
Publisher: | World Scientific | Journal: | International journal of structural stability and dynamics | 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 |
| Appears in Collections: | Journal/Magazine Article |
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| File | Description | Size | Format | |
|---|---|---|---|---|
| IJSSD_DmgID using X-correlation_by Xia_R1.pdf | Pre-published version | 616.85 kB | Adobe PDF | View/Open |
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