Abstract:

Structural damage location is identified by online detection using the multiresolution analysis of wavelet. The paper presents the structure of a civil engineering health monitoring system and the functions and features of monitoring modules. The fundamentals and methods of structural damage detection based on wavelet transform were expounded. The damage time can be found through analyzng the acceleration signal of a singlestory test platform, and the damage locationis identified through analyzing the scaling function of wavelet transformation.The result shows that the method has high practical value.

Key words: health monitoring; wavelet analysis; damage identification; multi resolution analysis