厚壁铝管斜入射线聚焦垂直剪切波电磁超声探头设计

doi:10.3969/j.issn.1004-132X.2022.07.006

中国机械工程 ›› 2022, Vol. 33 ›› Issue (07): 804-810.DOI: 10.3969/j.issn.1004-132X.2022.07.006

厚壁铝管斜入射线聚焦垂直剪切波电磁超声探头设计

蔡卓越1,2;涂君1,2;张旭1,2;邓志扬1,2 ;吴樵1,2;宋小春1,2

1.湖北工业大学机械工程学院，武汉，430068
2.现代制造质量工程湖北省重点实验室，武汉，430068

出版日期:2022-04-10 发布日期:2022-05-04
通讯作者: 涂君(通信作者)，男，1983年生，副教授。研究方向为电磁检测与传感、无损检测新技术。发表论文20余篇。E-mail：Juntu@hbut.edu.cn。
作者简介:蔡卓越，男，1995年生，硕士研究生。研究方向为无损检测技术与应用。发表论文1篇。E-mail:zhuoyuecai@foxmail.com。
基金资助:
国家自然科学基金(51707058，51807052)；
湖北省自然科学基金(2019CFA021)

Design of Oblique Incident Line-focusing SV Wave Electromagnetic Acoustic Transducer for Thick-walled Aluminum Tubes

CAI Zhuoyue1,2;TU Jun1,2;ZHANG Xu1,2;DENG Zhiyang1,2;WU Qiao1,2;SONG Xiaochun1,2

1.School of Mechanical Engineering,Hubei University of Technology,Wuhan,430068
2.Hubei Key Lab of Modern Manufacture Quality Engineering,Wuhan,430068

Online:2022-04-10 Published:2022-05-04

摘要/Abstract

摘要： 为将斜入射线聚焦垂直剪切(SV)波用于厚壁铝管缺陷探伤，提出了用于激励SV波的曲面曲折线圈优化设计方法。以不同曲率工件为检测对象，研究了以平面、平面弯曲及优化曲面的曲折线圈为主要元件的三种仿真模型，结果表明，优化曲面的曲折线圈在大曲率工件中的改进效果最为明显，其指向性精度最高可提高14.53%，探伤幅值最大可增强37.42%。最后以厚壁铝管直径4 mm横通孔为人工缺陷开展试验研究，发现最大曲率管的探伤幅值增大了338.84%。

关键词: 电磁超声探头, 垂直剪切波, 线聚焦, 厚壁铝管, 缺陷检测

Abstract: In order to apply oblique incident line-focusing SV wave for defecting detection of thick-walled aluminum tubes, an optimization design method of curved meander-line coil was proposed, which was used to stimulate SV wave. Three simulation models with plane coil, plane bending coil, and optimized curved coil as main components were studied by taking workpiece with different curvatures as detection objects. The results show that the optimized curved coil has the most obvious improvement effectiveness on the workpieces with large curvature, the directivity accuracy may be increased by 14.53%, and the detection amplitude may be increased by 37.42%. Finally, the experiments were carried out with 4 mm diameter transverse through hole of the thick-walled aluminum tubes as artificial defect. It is found that the detection amplitude of the maximum curvature tube is enhanced by 338.84%.

Key words: electromagnetic acoustic transducer（EMAT）, shear vertical(SV) wave, line-focusing, thick-walled aluminum tube, defect detection

中图分类号:

TB552

蔡卓越, 涂君, 张旭, 邓志扬, , 吴樵, 宋小春, . 厚壁铝管斜入射线聚焦垂直剪切波电磁超声探头设计[J]. 中国机械工程, 2022, 33(07): 804-810.

CAI Zhuoyue, TU Jun, ZHANG Xu, DENG Zhiyang, WU Qiao, SONG Xiaochun, . Design of Oblique Incident Line-focusing SV Wave Electromagnetic Acoustic Transducer for Thick-walled Aluminum Tubes[J]. China Mechanical Engineering, 2022, 33(07): 804-810.

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厚壁铝管斜入射线聚焦垂直剪切波电磁超声探头设计

Design of Oblique Incident Line-focusing SV Wave Electromagnetic Acoustic Transducer for Thick-walled Aluminum Tubes

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