Research of Experimental Modal Analysis and Multi-information Fusion Applied in Structural Damage Detection

摘要：

Damage-induced changes in natural frequencies, damping ratios and mode shapes can be detected using Experimental modal analysis (EMA). And it uses differences of measured modal properties from baseline or nominal values to identify the location and severity of damage. But the large amount data and complex information can lead to wrong judgment. A kind of multi-information fusion method was applied in damage detection system based on Dempster-Shafer evidence theory. The constructed integrated parameter performed well in the sensitivity and reliability compared to conventional single parameter methods. And the result showed that the multi-information fusion method can be widely used in damage diagnosis.

关键词： Experimental Modal Analysis Information Fusion Evidence Theory Damage Detection

作者: Wenhao SHEN Senwen ZHANG Changyou LI

作者单位: Zhongshan College, Univ. of Electronic Science and Technology of China, Zhongshan 528402, China International College, Jinan Univ., Guangzhou 510482, China College of Engineering, South China Agric. Univ., Guangzhou 510642, China

会议类型: 国际会议

会议名称: 2010 International Conference on Digital Manufacturing and Automation(2010 数字制造与自动化国际会议 ICDMA 2010)

会议地点: 长沙

会议语种:英文

页码: 172-173

在线出版日期: 2010-12-18（万方平台首次上网日期，不代表论文的发表时间）