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研究了压电层状结构中初应力对广义Rayleigh波传播相速度和机电耦合性能的影响，通过求解合初应力的运动微分方程，对自由界面电学开路和短路两种情况得到了相应的相速度方程．给出了具体的数值算例，所得结果对于提高和改善声表面波器件性能有参考意义．
The influence of initial stress on the propagation velocity and the electromechanical coupling property of the generalized Rayleigh wave is studied. By solving the differential equation of motion of the initial stress, the corresponding phase velocity is obtained for both the open circuit and the short circuit of the free interface. equation. The numerical examples are given, and the results give a reference for improving and improving the SAW device performance.