Nonlinearity harmonic at contact interface in ultrasonic transducers bonding system

被引：0
|
作者：
Li, Zhan-Hui [1 ,2 ]
Wu, Yun-Xin [1 ]
Long, Zhi-Li [1 ]
机构：
[1] College of Mechanical and Electronical Engineering, Central South University, Changsha 410083, China
[2] Institute of Automobile and Mechanical Engineering, Changsha University of Science and Technology, Changsha 410114, China
来源：
Zhendong yu Chongji/Journal of Vibration and Shock | 2010年 / 29卷 / 09期
关键词：
Diffusion bonding - Harmonic analysis;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Nonlinearity characteristic of ultrasonic transducers bonding system makes the capillary vibration chaos and bonding strength degradation. The model of ultrasonic propagation at contact interface between two solids was established and simulated. The vibration velocity was measured by using laser Doppler non-contact measurement device. The bond strength was tested. The wave distortion and the higher order harmonics generation arise from the nonlinearity of contact interface layer. The pre-stress should be restricted within a given range in order to enhance bonding strength. The higher harmonics of capillary are related to ultrasonic bonding strength.
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页码：138 / 141
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