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On the free vibrations of a piezoceramic hollow sphere

Domenii publicaţii > Matematica + Tipuri publicaţii > Articol în revistã ştiinţificã

Autori: Veturia Chiroiu and Ligia Munteanu

Editorial: Elsevier Ltd., Mechanics Research Communications, 34 (2 ), p.123-129, 2007.

Rezumat:

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.

Cuvinte cheie: Hollow sphere, Free vibrations, Piezoelasticity, Graded material, Cnoidal method, Genetic algorithm

URL: http://www.sciencedirect.com/science?_ob=PublicationURL&_cdi=5752&_pubType=J&_auth=y&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=e63ea0694ea0cbe890cc8e9d70f44f1c&jchunk=34#34