静荷载力作用下悬臂梁裂缝识别的小波方法

Crack Identification of Cantilever Beams under Static Loading by Using Continuous Wavelet Transform

利用小波分析技术对梁结构的裂缝进行识别,采用gaus2小波对静荷载力作用下梁的挠度响应进行连续小波变换,根据小波系数模极大值位置识别裂缝位置,利用Lipschitz指数识别裂缝损伤程度.仿真实例不仅证明了方法的有效性,还着重研究了裂缝数量和位置、静荷载力大小和作用位置对Lipschitz指数的影响.

The beam structures. The location of coefficients and simulation, the of load and the continuous wavelet transform （CWT） was applied to detect damages in Both the location and the damage extent of the crack were estimated. the crack can be identified by the modulus maximum of the wavelet the damages extent can be described by the Lipschitz exponent. In the influences of the crack location, the numbers of crack, the magnitude location of load to Lipschitz exponent were discussed.