CRACK IDENTIFICATION IN STEPPED CANTILEVER BEAM COMBINING WAVELET ANALYSIS WITH TRANSFORM MATRIX |
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| Authors: | Weiwei Zhang Zhihua Wang Hongwei Ma |
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| Affiliation: | Weiwei Zhang~1 Zhihua Wang~2 Hongwei Ma~(1,3*) (1 College of Science & Engineering,Jinan University,Guangzhou 510632,China) (2 Institute of Applied Mechanics,Taiyuan University of Technology,Taiyuan 030024,China) (3 The Key Laboratory of Disaster Forecast and Control in Engineering,Ministry of Education of China,China) |
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| Abstract: | This paper illustrates the crack identification method combining wavelet analysis with transform matrix.Firstly,the fundamental vibration mode was applied to wavelet analysis. The crack location was found by the peaks of the wavelet coefficients.Secondly,based on the identified crack locations,a simple transform matrix method requiring only the first two tested natural frequencies was used to further identify the crack depth.The present method can be used for crack identification in a complex structure.Nume... |
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| Keywords: | crack cantilever beam wavelet transform matrix |
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