Research of Information Fusion and Evidence theory Applied in Structural Damage Detection

Nondestructive damage detection technique is essential to ensure safety, reliability and operational life. 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.