Time reversal guided wave defect identification method - Details

Author：

Deng, Fei (Deng, Fei.) | Wu, Bin (Wu, Bin.) | He, Cunfu (He, Cunfu.) (Scholars：何存富)

Indexed by：

EI Scopus PKU CSCD

Abstract：

Aiming　at　the　defect　identifying　problem　for　guided　wave　inspection,　the　energy　distribution　of　various　guided　wave　modes　in　the　defect　scatter　wave　field　are　determined　from　the　investigation　of　the　relationship　between　the　amplitudes　of　the　time　reversal　detection　echoes　and　the　geometrical　characteristics　of　the　defect　in　the　pipeline.　According　to　that,　a　time　reversal　guided　wave　defect　identification　method　is　provided.　Based　on　numerical　simulation　results,　some　characteristic　parameters　are　chosen　for　describing　such　relationship　and　this　defect　identification　method　is　further　validated　by　using　cluster　analysis　method.　©　2010　Journal　of　Mechanical　Engineering.

Keyword：

Guided electromagnetic wave propagation Numerical methods Pipe Cluster analysis Defects

Author Community：

[ 1 ] [Deng, Fei]School of Mechanical and Automation Engineering, Shanghai Institute of Technology, Shanghai 200235, China
[ 2 ] [Wu, Bin]College of Mechanical Engineering and Applied Electronic Technology, Beijing University of Technology, Beijing 100124, China
[ 3 ] [He, Cunfu]College of Mechanical Engineering and Applied Electronic Technology, Beijing University of Technology, Beijing 100124, China