Crack Detection from the Slope of the Mode Shape Using Complex Continuous Wavelet Transform
作者： Xin Jiang , Zhongguo John Ma , Wei-Xin Ren
DOI: 10.1111/J.1467-8667.2011.00734.X
关键词:
摘要: Abstract: A new method for cracks detection in beams is proposed by using the slope of mode shape to detect cracks, and introducing angle coefficients complex continuous wavelet transform. This study aimed at detecting location nonpropagating transverse crack. A series with that are simulated rotational springs equivalent stiffness analyzed. The this lumped crack model calculated. Through transform Complex Gaus1 (CGau1), locations detected from modulus line coefficients. By comparison, singularity much more apparent demonstrates outperforms existing real wavelets. Also, can different boundary conditions. influence depth on discussed. Finally, noise effect studied. multiscale analysis, may be
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