中文摘要：

在压电的联合固体的横向的表面波浪的存在和繁殖被调查，在哪个在金属 / 电介质底层和压电的层之间结合的完成式有限厚度被假定。为各种各样的模式的存在联系阶段速度到材料常数的分散方程为班 6 公里的压电的材料在一种简单数学形式被获得。它被数字例子在这份报纸发现并且证明新奇 Bleustein 鈥揋u lyaev (当在底层的 bulk-shear-wave 速度是时，横向的表面波浪的 B 鈥揋)类型能在如此的压电的联合稳固的媒介存在不到那在压电的层但是比相应 B 鈥揋 波浪大在有 electroded 表面的一样的压电的材料的速度。如此的一个波浪不当压电不在时在如此的分层的结构存在。为在压电的层的排水量和电的潜力的模式形状理论上被获得并且讨论。学习扩大横向的表面波浪的政体并且可以导致潜在的应用出现声学的波浪设备。关键词横向的表面波浪 - 压电的联合固体 - 分散关系 - 表面声学的波浪设备工程被中国(10972171 ) 和节目的国家自然科学基础在大学(NCET-08-0429 ) 里为新世纪优秀才能支持。

英文摘要：

The existence and propagation of transverse surface waves in piezoelectric coupled solids is investigated, in which perfect bonding between a metal/dielectric substrate and a piezoelectric layer of finite-thickness is assumed. Dis- persion equations relating phase velocity to material con- stants for the existence of various modes are obtained in a simple mathematical form for a piezoelectric material of class 6mm. It is discovered and proved by numerical examples in this paper that a novel Bleustein-Gulyaev （B-G） type of transverse surface wave can exist in such piezoelectric cou- pled solid media when the bulk-shear-wave velocity in the substrate is less than that in the piezoelectric layer but greater than the corresponding B-G wave velocity in the same pie- zoelectric material with an electroded surface. Such a wave does not exist in such layered structures in the absence of pie- zoelectricity. The mode shapes for displacement and electric potential in the piezoelectric layer are obtained and discussed theoretically. The study extends the regime of transverse sur- face waves and may lead to potential applications to surface acoustic wave devices.