Wavelet packet based damage identification of beam structures
نویسندگان
چکیده
منابع مشابه
Damage identification of structures using experimental modal analysis and continuous wavelet transform
Abstract: Modal analysis is a powerful technique for understanding the behavior and performance of structures. Modal analysis can be conducted via artificial excitation, e.g. shaker or instrument hammer excitation. Input force and output responses are measured. That is normally referred to as experimental modal analysis (EMA). EMA consists of three steps: data acquisition, system identificatio...
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Excitation makes a great influence on the wavelet energy distribution of the response signal, this deficiency leads that the traditional structural damage identification method based on wavelet energy has a low precision. In order to solve this problem, a new structural damage identification method based on wavelet packet energy entropy (WPEE) of impulse response is presented in this paper. Fir...
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ژورنال
عنوان ژورنال: International Journal of Solids and Structures
سال: 2005
ISSN: 0020-7683
DOI: 10.1016/j.ijsolstr.2005.04.031