电子科技2025，Vol.38Issue(1)：37-44,8.DOI:10.16180/j.cnki.issn1007-7820.2025.01.006
基于希尔伯特-黄变换的高速侵彻损伤源定位
Research of High-Speed Penetration Damage Source Localization Based on Hilbert-Huang Transform
摘要
Abstract
Lamb waves generated by high-speed blunt body penetrating a double-layer structure are subject to the effect of complex structural interfaces and test environment in the process of propagation,resulting in the effec-tive signal containing damage characteristics easily disturbed by other factors.This study takes the double-layer steel plate structure as the object of study.The propagation characteristics of Lamb wave generated by penetration in steel plate are studied.For the nonlinear shock source signal,the transient non-smooth signal generated by the in-trusion is analyzed and reconstructed based on the HHT(Hilbert-Huang Transform),and the Lamb wave S0 mode signal containing the shock source features is extracted.The results show that the proposed method can effectively e-liminate the influence of other incoherent clutter in complex environment,and the reconstructed signal improves the localization accuracy.关键词
Lamb波/双层结构/高速/侵彻/希尔伯特-黄变换/层间耦合/信号重构/定位Key words
Lamb wave/double-layer construction/high-speed/penetration/HHT/interlayer coupling/signal reconstruction/localization分类
通用工业技术引用本文复制引用
骆英,宋成,徐晨光..基于希尔伯特-黄变换的高速侵彻损伤源定位[J].电子科技,2025,38(1):37-44,8.基金项目
国家自然科学基金(12072133,11520101001)National Natural Science Foundation of China(12072133,11520101001) （12072133,11520101001）
