Synchronous detection of bolts looseness position and degree based on fusing electro-mechanical impedance

doi:10.1016/j.ymssp.2022.109068

CIOMP OpenIR

	Synchronous detection of bolts looseness position and degree based on fusing electro-mechanical impedance
	L. T. Wang; B. Yuan; Z. B. Xu and Q. C. Sun
	2022
发表期刊	Mechanical Systems and Signal Processing
ISSN	0888-3270
卷号	174 页码:13
摘要	Looseness is the most common form of failure in bolt connections, which can cause safety accidents by reducing the rigidity of the structural connection, and the detection of bolt looseness is vital to maintain the health of the structure. However, due to the limitations of existing methods, it is difficult to detect the position of loose bolt and degree of looseness synchronously. In this study, an Electro-mechanical impedance (EMI) detection method based on fusing multi-frequency ranges was proposed. Firstly, the feasibility of bolt looseness detection based on EMI technology was analyzed through theoretical deduction; secondly, the qualitative relationship between excitation frequency and detection range was explored through finite element simulation, which provides a basis for the proposed fusing multi-frequency ranges method, and the conclusion was verified in four-bolted flange structure; finally, a detection method for bolt looseness was proposed, which uses the impedance shift as the damage index, and detect the position of loose bolt and degree of looseness synchronously by fusing EMI in multiple frequency ranges. The verification results show that the proposed method can identify the loosening status of bolts in the flange structure with high accuracy.
DOI	10.1016/j.ymssp.2022.109068
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收录类别	sci ; ei
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/67146
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	L. T. Wang,B. Yuan,Z. B. Xu and Q. C. Sun. Synchronous detection of bolts looseness position and degree based on fusing electro-mechanical impedance[J]. Mechanical Systems and Signal Processing,2022,174:13.
APA	L. T. Wang,B. Yuan,&Z. B. Xu and Q. C. Sun.(2022).Synchronous detection of bolts looseness position and degree based on fusing electro-mechanical impedance.Mechanical Systems and Signal Processing,174,13.
MLA	L. T. Wang,et al."Synchronous detection of bolts looseness position and degree based on fusing electro-mechanical impedance".Mechanical Systems and Signal Processing 174(2022):13.

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