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A Lorentz force-based SH-typed electromagnetic acoustic transducer using flexible circumferential printed circuit.
Sui, Xiaodong; Zhang, Ru; Luo, Yaozhi; Tang, Zhifeng; Wang, Zhen.
Afiliación
  • Sui X; Department of Civil Engineering, Hangzhou City University, China; College of Civil Engineering and Architecture, Zhejiang University, China; Key Laboratory of Safe Construction and Intelligent Maintenance for Urban Shield Tunnels of Zhejiang Province, Hangzhou City University, China.
  • Zhang R; Department of Civil Engineering, Hangzhou City University, China; College of Civil Engineering and Architecture, Zhejiang University, China; Key Laboratory of Safe Construction and Intelligent Maintenance for Urban Shield Tunnels of Zhejiang Province, Hangzhou City University, China. Electronic addr
  • Luo Y; College of Civil Engineering and Architecture, Zhejiang University, China.
  • Tang Z; Institute of Advanced Digital Technologies and Instrumentation, Zhejiang University, China.
  • Wang Z; Department of Civil Engineering, Hangzhou City University, China.
Ultrasonics ; 141: 107348, 2024 Jul.
Article en En | MEDLINE | ID: mdl-38805953
ABSTRACT
Structural health monitoring (SHM) of in-service structures is becoming increasingly important. The fundamental shear horizontal (SH0) guided wave mode in plate-like structures shows great potential in damage detection due to its non-dispersive and in-plane vibration properties. In order to generate SH0 waves, a practical Lorentz force-based electromagnetic acoustic transducer (EMAT) was introduced in this study using the flexible circumferential printed circuit (CPC). The designed principle of CPC-EMAT was similar to that of the circumferential magnet array (CMA)-based EMAT. However, the structure of the CMA-EMAT is complex, and it is difficult to assemble for generating high frequency and uniformly distributed omnidirectional SH0 waves. Firstly, the performance of the CMA-EMAT with different numbers of magnets was investigated by finite element simulations. Then, the CPC was proposed to replace the CMA with an optimized designed on its size. The CPC-EMAT is easier to fabricate compared to the CMA-EMAT. Finally, experimental tests were conducted for systematic validations on the transducer properties. Simulation and experimental results show that the CPC-EMAT can successfully generate the desirable and acceptable omnidirectional SH0 waves. The proposed CPC-EMAT is anticipated to find widespread application in SH-typed guided wave-based SHM.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Ultrasonics Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Países Bajos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Ultrasonics Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Países Bajos