摘要
讨论了弹性波在压电介质摩擦接触界面上的反射和透射问题.利用Fourier分析的方法,将非线性Coulomb摩擦接触边界波动问题化为奇异积分方程问题.利用迭代-修正的方法,确定了界面上滑移和粘着区域的分布范围,同时计算了面力、相对滑移速度等参量以及由于边界非线性而引起的反射和透射的高频谐波幅值,并讨论了它们随外加力-电荷载的变化规律.
Reflection and transmission of elastic waves at a frictional contact interface between two piezoelectric media is discussed. Employed Fourier analysis, the nonlinear wave problems with Coulomb frictional boundaries are transformed into singular integral equations. An iterative method is developed to determine the extent and location of the slip and stick regions. The interface tractions, relative slip velocities and the amplitudes of the reflected and refracted high harmonics due to the boundary non-linearity are evaluated. The variation with the applied mechanical-electrical loads and friction coefficient is discussed.
出处
《应用基础与工程科学学报》
EI
CSCD
2006年第1期77-83,共7页
Journal of Basic Science and Engineering
基金
国家自然科学基金(10372001
10025211)资助
关键词
压电介质
界面
摩擦接触
波
反射
透射
非线性
高频谐波
piezoelectric medium
interface
frictional contact
wave
reflection
transmission
non-linearity
high harmonics
