基于希尔伯特-黄变换的高速侵彻损伤源定位

doi:10.16180/j.cnki.issn1007-7820.2025.01.006

电子科技 ›› 2025, Vol. 38 ›› Issue (1): 37-44.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

骆英(), 宋成, 徐晨光

江苏大学土木工程与力学学院,江苏镇江 212000

收稿日期:2023-05-21 修回日期:2023-06-19 出版日期:2025-01-15 发布日期:2025-01-06
通讯作者: 骆英(1960-),男, E-mail:454870578@qq.com,博士,教授。研究方向:智能压电传感与驱动器技术、多物理场耦合。
作者简介:宋成(1999-),男,硕士研究生。研究方向:超声Lamb波检测与无损评估技术。
徐晨光(1979-),男,高级实验师。研究方向:超声Lamb波检测与无损评估技术。
基金资助:
国家自然科学基金(12072133);国家自然科学基金(11520101001)

Research of High-Speed Penetration Damage Source Localization Based on Hilbert-Huang Transform

LUO Ying(), SONG Cheng, XU Chenguang

Faculty of Civil Engineering and Mechanics,Jiangsu University,Zhenjiang 212000,China

Received:2023-05-21 Revised:2023-06-19 Online:2025-01-15 Published:2025-01-06
Supported by:
National Natural Science Foundation of China(12072133);National Natural Science Foundation of China(11520101001)

摘要/Abstract

摘要：

高速钝体侵彻双层结构产生的Lamb波在传播过程中受复杂结构界面和测试环境影响,导致含损伤特征的有效信号易被其他因素干扰。文中以双层钢板结构为研究对象,重点研究侵彻产生的Lamb波在钢板中的传播特性。针对非线性的冲击源信号,基于希尔伯特-黄变换(Hilbert-Huang Transform, HHT)对侵彻产生的瞬态非平稳信号进行分析并重构,提取了含冲击源特征的Lamb波S₀模态信号,基于误差函数的几何定位算法确定了相应的损伤源位置。结果表明,所提方法可有效剔除复杂环境中其他不相干杂波的影响,重构后的信号提高了定位精准度。

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

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 effective 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 intrusion is analyzed and reconstructed based on the HHT(Hilbert-Huang Transform), and the Lamb wave S₀mode signal containing the shock source features is extracted. The results show that the proposed method can effectively eliminate the influence of other incoherent clutter in complex environment, and the reconstructed signal improves the localization accuracy.

Key words: Lamb wave, double-layer construction, high-speed, penetration, HHT, interlayer coupling, signal reconstruction, localization

中图分类号:

TB553

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.

LUO Ying, SONG Cheng, XU Chenguang. Research of High-Speed Penetration Damage Source Localization Based on Hilbert-Huang Transform[J]. Electronic Science and Technology, 2025, 38(1): 37-44.

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	第1层钢板		第2层钢板
	x/mm	y/mm	x/mm	y/mm
S₁	311	0	310	0
S₂	0	301	0	304
S₃	-312	0	-306	0
S₄	0	-303	0	-306

钢板层数	实际侵彻位置 /mm	定位位置/mm		误差/%
钢板层数	实际侵彻位置 /mm	重构信号	原始信号	重构信号	原始信号
第1层	(0,0)	(-5,15)	(-15,35)	1.5	4.8
第2层	(3,10)	(5,15)	(15,45)	0.8	4.6

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

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