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| 1 | 声表面波在厚金属栅阵中的耦合模参数显示文摘提出了一种研究声表面波在压电晶体厚金属栅阵中传播特性的理论方法。将有限元和声表面波在周期栅阵中的变分原理分析方法相结合,在陈东培和H.A.Haus理论基础上、用有限元分析金属短路栅对声表面波传输特性的影响,将力学负载贡献的耦合模参数用有限元矩阵表示,使其适用于声表面波在厚金属或任意形状栅条中传输情况,给出了具体理论分析方法和相应的理论表达式。最后,具体研究了几种压电晶体上金、铝或银栅阵中声表面波的传输特性,通过数值计算给出了声表面波的耦合模参数。 | 徐方迁 金步平 | 2010 | 声学学报2010，35，4： | 5 |
| 2 | Fast calculate the parameters of surface acoustic wave coupling-of-modes model显示文摘在分层的结构被获得的压电的底层和金属电影的声学的波浪的精确答案。阶段速度,机电的联合系数和静态的电容被计算在答案之上基于。陈和 Hau 是理论被用来分析表面声学的波浪在弄短与单身者一起的栅栏摸每个时期和一脱衣的思考系数表情被介绍。X112 潦 g 上的铝的参数 ?? 膰?? | LIU Jiansheng HE Shitang | 2007 | Chinese Journal of Acoustics2007，26，3： | 3 |
| 3 | A variational principle analysis of surface acoustic waves propagating under periodic metal grating with finite thickness显示文摘A theoretical method is presented,which analyzes properties of surface acoustic waves propagating on metallic gratings with finite thickness by combining finite element method with variational principle on surface acoustic waves propagating on periodic metal gratings. Based on D.P.Chen and Haus theory,a finite element method is used to investigate the effects of metallic gratings upon the propagation of surface acoustic waves.The coupling-of-modes parameters contributed by mechanical loading are expressed by the matrix derived from the finite element method.Consequently D.P.Chen and Haus theory can also be applied to analyze the properties of surface acoustic waves propagating on metallic gratings with finite thickness and arbitrary shape.Finally,the characteristics of surface acoustic waves propagating under gold and aluminum or silver gratings on a few piezoelectric crystals are studied.Numerical results of the coupling-of-modes parameters of the surface acoustic waves are obtained. | XU Fangqian ZHANG Yanhua | 2013 | Chinese Journal of Acoustics2013，32，3： | 1 |
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