Propagation of longitudinal guided waves in water-filled steel pipes and its applications to defect detection - 文章详情页

作者：

Liu, Z.H. (Liu, Z.H..) (学者：刘增华) | He, C.F. (He, C.F..) (学者：何存富) | Wu, B. (Wu, B..) (学者：吴斌)

收录：

EI Scopus

摘要：

Propagation　characteristics　of　longitudinal　modes　in　water-filled　steel　pipe　are　studied.　Longitudinal　modes　at　160kHz　and　195kHz　are　excited　and　used　to　detect　a　artificial　circumferential　defect　in　a　water-filled　steel　pipe.　Results　show　the　branching　parts　of　unperturbed　L(0,2)　mode　with　low　dispersion　and　attenuation　are　suitable　for　defect　detection　in　water-filled　pipes　for　its　energy　propagates　mainly　in　pipe　wall　and　the　present　of　water　don＇t　affect　it　seriously.　However,　longitudinal　modes　at　certain　frequency　ranges　are　unsuitable　to　detect　defects　for　their　energy　propagates　mainly　in　water　and　they　disperse　greatly.

关键词：

Defects Dispersion (waves) Guided electromagnetic wave propagation Mechanics Steel pipe

作者机构：

[ 1 ] [Liu, Z.H.]Modern Measurement and Control Technique Laboratory, College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing, 100022, China
[ 2 ] [He, C.F.]Modern Measurement and Control Technique Laboratory, College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing, 100022, China
[ 3 ] [Wu, B.]Modern Measurement and Control Technique Laboratory, College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing, 100022, China

通讯作者信息：

电子邮件地址：

liuzenghua@bjut.edu.cn

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