关键词: 积分平均方法, 压电圆柱壳, 瞬态响应

Abstract: The wave propagation along axis direction in piezoelectric hollow cylinder is studied. Using integral average method, the author derives a group of differential equations, which are about displacements and electric potential. It shows that when wave propagates along axis direction, the displacements of radial, axis direction and the change of electric field are coupling each other, and there is dispersing phenomenon, and the displacement of circle direction can figure out independently, it has not dispersing phenomenon. At last the instantaneous responses under a stress pulse at the end are simulated numerically. The effect of the radius'ratios of the hollow cylinder to the wave propagation is also discussed.

Key words: integral average method, piezoelectric hollow cylinder, instantaneous response