Experimental research on longitudinal mode selection in pipes using angle beam probes - 文章详情页

作者：

Liu, Zeng-Hua (Liu, Zeng-Hua.) (学者：刘增华) | He, Cun-Fu (He, Cun-Fu.) (学者：何存富) | Wu, Bin (Wu, Bin.) (学者：吴斌) | Wang, Xiu-Yan (Wang, Xiu-Yan.)

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摘要：

The　excitation　and　reception　of　higher　order　longitudinal　modes　are　investigated　experimentally.　According　to　Snell＇s　law　and　phase　velocity　dispersion　curves,　incident　angles　and　excitation　frequencies　of　angle　beam　probes　are　chosen,　and　then,　the　wanted　subsequently　higher　order　longitudinal　modes　are　excited　in　pipes.　However,　it　will　become　more　difficult　to　control　excited　modes　as　the　order　and　excitation　frequency　of　longitudinal　modes　become　higher.　Furthermore,　the　influence　of　the　number　of　excitation　angle　beam　probes　on　mode　choice　is　analyzed.　Experimental　results　show　that　it　is　essential　to　suppress　flexural　modes　by　increasing　the　number　of　excitation　angle　beam　probes.

关键词：

Pipe Dispersions Dispersion (waves) Probes Phase velocity

作者机构：

[ 1 ] [Liu, Zeng-Hua]College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing 100124, China
[ 2 ] [He, Cun-Fu]College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing 100124, China
[ 3 ] [Wu, Bin]College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing 100124, China
[ 4 ] [Wang, Xiu-Yan]College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing 100124, China

通讯作者信息：

电子邮件地址：

liuzenghua@bjut.edu.cn

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