EXCITATION AND PROPAGATION OF FLEXURAL PLATE WAVE

摘要：

　　Flexural plate wave (FPW) can be used to detect the crack on the plate, so investigating the excitation and propagation characteristics of FPW becomes particularly important and urgent.Effective methods to generate FPW are researched by transducers arrangement.The experimental dispersion curves of FPW were measured by incremental distance measurements using laser vibrometer, and is compared with the theoretical curves.The experiment shows that the FPW can be excited more effectively by using two transducers with the distance of one wavelength.The experimental dispersion curves of the phase and group velocity of FPW are in agreement with the theoretical curves.

关键词： Flexural plate wave Dispersion curve Phase velocity Group velocity

作者: Jian LI Xiang GAO Jun MA Jian-zheng CHENG Zhi-wu AN Cheng-hao WANG

作者单位: Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China;Wuhan Textile University, Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China Wuhan Textile University, Wuhan 430200, China

会议类型: 国际会议

会议名称: The 2017 Symposium on Piezoelectricity,Acoustic Waves and Device Applications(2017全国压电和声波理论及器件技术研讨会)

会议地点: 成都

会议语种:英文

页码: 179-182

在线出版日期: 2017-10-27（万方平台首次上网日期，不代表论文的发表时间）