On the free vibrations of a piezoceramic hollow sphere

被引:16
作者
Chiroiu, Veturia [1 ]
Munteanu, Ligia [1 ]
机构
[1] Romanian Acad, Inst Solid Mech, Bucharest 010141, Romania
关键词
hollow sphere; free vibrations; piezoelasticity; graded material; cnoidal method; genetic algorithm;
D O I
10.1016/j.mechrescom.2006.06.011
中图分类号
O3 [力学];
学科分类号
08 ; 0801 ;
摘要
The aim of the paper is to analyze the free vibrations of a piezoceramic hollow sphere with radial polarization. Using the cnoidal method and a genetic algorithm solves the equations of a radially inhomogeneous spherically isotropic piezoelastic medium. The Reddy and the cosine laws represent the functionally graded property of material. It is seen that for a piezoceramic hollow sphere, the piezoelectric effect consists in increasing the values for the natural frequencies in the specified classes of vibrations. (C) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码:123 / 129
页数:7
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