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Numerical Studies on Wavelet-Based Crack Detection Based on Velocity Response of a Beam Subjecting to Moving Load

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Abstract:

In this paper, the possibility and validity of damage detection based on velocity response of a simply supported beam under the moving load are examined theoretically and numerically. It includes the following parts: First, the theoretic background of the beam vibration subjecting to moving load is briefly described. And then, the velocity responses of a simple supported beam are calculated by software Ansys. Using wavelet transform, the damage location can be identified successfully. At last, the effects of noise and load speed are discussed in detail. Numerical studies show the validity of the proposed method and a good noise tolerance using the velocity response.

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Periodical:

Key Engineering Materials (Volumes 569-570)

Pages:

854-859

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.569-570.854

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Online since:

July 2013

Authors:

Wei Wei Zhang, Jia Geng, Zi Long Zhao, Zhi Hua Wang

Keywords:

Beam, Damage Detection, Moving Load, Wavelet Transform (WT)

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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