期刊论文

Ren, Wei-Xin

英文

Journal of Low Frequency Noise Vibration and Active Control

1461-3484

2020

39

3

631-649

10.1177/1461348418820237

The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: The authors thank the financial support granted by the Natural Science Foundation of China (Grant Nos. 51078357, 51478472, U1734208 and 51508576) and the Scientific Research Fund of Hunan Provincial Education Department (Project no. 14C0214).

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This article focuses on the experimental investigations on the cross-correlation function amplitude vector of the dynamic strain (CorV_S) under varying environmental temperature for structural damage detection. It is verified that under white noise excitation, CorV_S is only related to the natural frequencies, mode shapes, and damping ratios of structures. The normalized CorV_S of the undamaged structure maintains a uniform shape. A laboratory experimental investigation based on an end-fixed steel beam shows that CorV_S can be used for structur...