文献类型：期刊文献

英文题名：Utilizing wavelet packet decomposition to locate the damage of composite structures in strong-noise environment

作者：Wang, Minjie[1]; Zhu, Wujun[1,2]; Xiang, Yanxun[1]

机构：[1] Shanghai Key Laboratory of Intelligent Sensing and Detection Technology, School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai, 200237, China; [2] Key Laboratory of Modern Acoustics, MOE, Nanjing University, Nanjing, 210023, China

年份：2024

卷号：2785

期号：1

外文期刊名：Journal of Physics: Conference Series

收录：EI(收录号：20242816697113)

语种：英文

外文关键词：Composite structures - Damage detection - Structure (composition) - Wavelet analysis

摘要：This paper proposes an approach for damage localization in a strong noise environment based on wavelet packet decomposition. Experiments were conducted to locate damage in composite structures to verify the method. The signal was decomposed by a wavelet packet, and the damage information was identified through wavelet packet energy ratio deviation, defined as the damage factor. The proposed method effectively localizes the damage and directly captures the original signal without the need to preprocess the strong noise signals. Additionally, it bypasses the complex process of extracting reflected signals, demonstrating substantial potential for detecting and identifying composite damage in noisy environments. ? Published under licence by IOP Publishing Ltd.