文献类型：期刊文献

英文题名：Theoretical analysis and experimental observation of frequency mixing response of ultrasonic Lamb waves

作者：Li, Weibin[1];Deng, Mingxi[2];Hu, Ning[2,3];Xiang, Yanxun[4]

机构：[1]Xiamen Univ, Sch Aerosp Engn, Xiamen 361005, Peoples R China;[2]Chongqing Univ, Coll Aerosp Engn, Chongqing 400044, Peoples R China;[3]Chongqing Univ, Key Lab Optoelect Technol & Syst, MOE, Chongqing 400044, Peoples R China;[4]East China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai 200237, Peoples R China

年份：2018

卷号：124

期号：4

外文期刊名：JOURNAL OF APPLIED PHYSICS

收录：;EI(收录号：20183105639631);WOS:【SCI-EXPANDED(收录号:WOS:000440607800027)】；

基金：This work was supported by the National Natural Science Foundation of China (Grant Nos. 11474361, 11774295, 11622430, and 11632004).

语种：英文

外文关键词：Ultrasonic applications - Harmonic analysis - Mixing - Surface waves

摘要：In this work, we analyze theoretically and observe experimentally the frequency mixing response induced by the collinear interaction of two primary Lamb waves with different frequencies in an isotropic and homogenous plate. The internal resonance conditions for generating the combined harmonics are analyzed by using a perturbation approach and a normal-mode-expansion technique for waveguide excitation. The second- and third-order combined harmonics generated by the collinear wave mixing of two primary Lamb waves propagating in a specimen are analyzed, and the existence of the combined harmonics at specific frequencies is predicted. An experimental procedure is proposed to measure the combined harmonics induced by the collinear cross-interaction of the two specific primary Lamb waves at given frequencies. The theoretical prediction of the appearance of the combined harmonics at the specific mixing frequencies is consistent with experiment. The theoretical analysis and experimental observation provide a clear physical insight into the frequency-mixing response induced by the collinear cross-interaction of two primary ultrasonic Lamb waves. Published by AIP Publishing.