Experimental investigation of damage detection in arch using fequency perturbation

Liangyan Cheng; Zhenhua Song; Jun Zhao; Hongwei Ma

doi:10.1117/12.839273

25 August 2009 Experimental investigation of damage detection in arch using fequency perturbation

Liangyan Cheng, Zhenhua Song, Jun Zhao, Hongwei Ma

Proceedings Volume 7375, ICEM 2008: International Conference on Experimental Mechanics 2008; 73753Y (2009) https://doi.org/10.1117/12.839273
Event: International Conference on Experimental Mechanics 2008 and Seventh Asian Conference on Experimental Mechanics, 2008, Nanjing, China

Abstract

Determination of damage location and severity are important for the arch structure. First, the frequency perturbation formulate in damage identification are derived combining matrix perturbation theory with finite element technology. Next, an experimental test was carried out to determine the first six frequencies in the intact and damage arch structure. Finally, the location and severity of structural damages can be detected based on the measured natural frequencies of damage structure. The result shows the frequency perturbation method is feasible to the structural damage detection for the only need of frequency-data, and can be applied to damage detection in the arch structure.

Citation Download Citation

Liangyan Cheng, Zhenhua Song, Jun Zhao, and Hongwei Ma "Experimental investigation of damage detection in arch using fequency perturbation", Proc. SPIE 7375, ICEM 2008: International Conference on Experimental Mechanics 2008, 73753Y (25 August 2009); https://doi.org/10.1117/12.839273

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