Pipe Defects Detection Using Circumferential Guided Waves Based on Bulk Shear Wave Transducer [基于横波直探头的管道缺陷周向导波检测技术] - 文章详情页

作者：

Lü, Y. (Lü, Y..) | Guo, C. (Guo, C..) | Zhang, X. (Zhang, X..) | Wu, B. (Wu, B..) | He, C. (He, C..)

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摘要：

For　the　detection　of　defects　in　thick-walled　pipe,　The　bulk　shear　wave　(BSW)　transducer　was　used　to　generate　the　circumferential　Lamb　wave　to　detect　the　typical　defects.　Different　circumferential　wave　modes　were　excited　by　changing　the　arrangement　direction,　and　the　insensitivity　problem　to　axial　defects　of　cylindrical　longitudinal　guided　waves　was　overcome.　The　detection　efficiency　was　highly　improved.　By　moving　the　bulk　shear　wave　transducer　along　the　pipe　axial　direction,　the　circumferential　scanning　examination　can　be　realized.　This　demonstrates　the　good　directivity　for　detection　of　the　pipeline　defects　by　bulk　shear　wave　transducer.　It　provides　a　method　for　non-destructive　testing　of　axial　defects　in　pipelines.　©　2018,　Editorial　Department　of　Journal　of　Beijing　University　of　Technology.　All　right　reserved.

关键词：

Axial defect; Bulk shear wave transducer; Circumferential guided waves; Non-destructive testing

作者机构：

[ 1 ] [Lü, Y.]College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing, 100124, China
[ 2 ] [Guo, C.]School of Information Technology & Management, University of International Business and Economics, Beijing, 100029, China
[ 3 ] [Zhang, X.]College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing, 100124, China
[ 4 ] [Wu, B.]College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing, 100124, China
[ 5 ] [He, C.]College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing, 100124, China

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