WAVE-PROPAGATION IN A PIEZOELECTRIC, CONTINUOUSLY TWISTED, STRUCTURALLY CHIRAL MEDIUM ALONG THE AXIS OF SPIRALITY

被引：15

作者：

LAKHTAKIA, A

机构：

[1] Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park

来源：

APPLIED ACOUSTICS | 1995年 / 44卷 / 01期

关键词：

22;

D O I：

10.1016/0003-682X(94)P4417-5

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

The stress tensor in a piezoelectric, continuously twisted, structurally chiral medium (PCTSCM) is symmetric, while the stiffness, the permitivity and the piezoelectric stress matrices vary helicoidally about the axis of spirality. Exact analytic solutions are found for wave propagation along the axis of spirality in a PCTSCM. Because the eigenmodes are elliptically polarixed with the vibration ellipse varying along the propagation direction, application of PCTSCMs for transducers with special polarization properties is envisaged.

引用

页码：25 / 37

页数：13

共 23 条

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