Theoretical and experimental studies of ultrasonic guided waves propagation in pipes

被引：0
|
作者：
Wang, Xiuyan [1 ]
Wang, Zhi [1 ]
Jiao, Jingpin [1 ]
Wu, Bin [1 ]
He, Cunfu [1 ]
机构：
[1] Beijing Univ. of Technol., Beijing 100022, China
来源：
Jixie Gongcheng Xuebao/Chinese Journal of Mechanical Engineering | 2004年 / 40卷 / 01期
关键词：
Piezoelectric transducers - Pipe - Ultrasonic applications - Ultrasonic dispersion;
D O I：
10.3901/jme.2004.01.011
中图分类号：
学科分类号：
摘要：
Using distributed PZT transducer, ultrasonic guided waves are generated and received in a pipe. Because multiple modes of guided wave propagation are possible in pipes and these modes are generally dispersive, the specific exciting signal of a Hanning windowed toneburst with a central frequency of 70 kHz is selected for decreasing the effect of dispersion. And guided waves are generated using 16 distributed PZT transducer in a circumferential direction for suppressing flexural modes. The experimental results are good agreement with the theoretical ones.
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页码：11 / 16
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