Journal
JOURNAL OF SOUND AND VIBRATION
Volume 281, Issue 1-2, Pages 295-309Publisher
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jsv.2004.01.016
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Based on the Reddy's theory of plates with the effect of higher-order shear deformations, the governing equations for nonlinear vibration of orthotropic plates with finite deformations are presented. The nonlinear free vibration is analyzed by the differential quadrature method. The differential quadrature approach suggested by Wang and Bert is extended to handle the multiple boundary conditions of the plate. A new technique is also further extended to simplify nonlinear computations and the harmonic balance method is used in deriving the equation of motion. The numerical convergence and comparison studies are carried out to validate the present solutions. The results show that the presented differential quadrature method is fairly reliable and valid. Influences of geometric and material parameters, transverse shear deformations and rotation inertia, as well as vibration amplitudes, on the nonlinear free vibration characteristics of orthotropic plates are studied. (C) 2004 Elsevier Ltd. All rights reserved.
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