Direction-enhanced guided wave transducer based on pulse compression technique
文献类型：期刊论文
| 作者 | Yang, Runjie2; Li, Zhichao2; Wang, Shujuan2; Pan, Xiangnan1; Long, Xu3 |
| 刊名 | INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
 |
| 出版日期 | 2025-11-15 |
| 卷号 | 306页码:21 |
| 关键词 | Guided waves Structural health monitoring Pulse compression technique Electromagnetic acoustic transducer Directional enhancement |
| ISSN号 | 0020-7403 |
| DOI | 10.1016/j.ijmecsci.2025.110814 |
| 通讯作者 | Li, Zhichao(zhichao.li@hit.edu.cn) ; Pan, Xiangnan(panxiangnan@lnm.imech.ac.cn) |
| 英文摘要 | Ultrasonic guided waves are widely employed for structural health monitoring (SHM) as well as in nondestructive testing and evaluation (NDT&E). The 0th order shear horizontal (SH0) guided wave, known for its simple vibration mode and non-dispersive characteristics, simplifies the interpretation of detection signals. However, traditional transducers that generate and receive the SH0 guided wave bidirectionally pose challenges for defect localization. This paper introduces an electromagnetic acoustic transducer (EMAT) based on the pulse compression technique for directional enhancement. The direction-enhanced EMAT consists of a linear frequency modulation (LFM) excitation signal and periodic permanent magnets (PPMs) arranged in variable spacings and widths. An analytical model is developed to predict the received signals and analyze the pulse compression mechanism of the PPM EMAT. During the transmitting and receiving process, the PPMs align the phase of the broadband excitation signal to obtain a compressed and enhanced received signal. Additionally, the enhanced side can be controlled using different LFM excitation signals. Finally, the directional enhancement is validated through finite element simulations and experimental results. The proposed direction-enhanced guided wave transducer and its design methodology demonstrate significant potential for SHM and NDT&E in plates, shells, and pipelines. |
| WOS关键词 | HIGH-TEMPERATURE EMAT ; PERMANENT-MAGNETS ; EXCITATION ; EFFICIENCY |
| 资助项目 | Start-up Research Grant at Harbin Institute of Technology[AUGA5710012022] |
| WOS研究方向 | Engineering ; Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:001574476600002 |
| 资助机构 | Start-up Research Grant at Harbin Institute of Technology |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/104023]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 通讯作者 | Li, Zhichao; Pan, Xiangnan |
| 作者单位 | 1.Chinese Acad Sci, LNM, Inst Mech, Beijing 100190, Peoples R China 2.Harbin Inst Technol, Sch Elect Engn & Automat, Harbin 150001, Peoples R China 3.Northwestern Polytech Univ, Sch Mech Civil Engn & Architecture, Xian 710129, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Runjie,Li, Zhichao,Wang, Shujuan,et al. Direction-enhanced guided wave transducer based on pulse compression technique[J]. INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES,2025,306:21. |
| APA | Yang, Runjie,Li, Zhichao,Wang, Shujuan,Pan, Xiangnan,&Long, Xu.(2025).Direction-enhanced guided wave transducer based on pulse compression technique.INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES,306,21. |
| MLA | Yang, Runjie,et al."Direction-enhanced guided wave transducer based on pulse compression technique".INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES 306(2025):21. |
入库方式： OAI收割
来源：力学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。