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RESEARCH PAPERS

Vibration Analysis of Discontinuous Mindlin Plates by Differential Quadrature Element Method

[+] Author and Article Information
F.-L. Liu

CAD/CAM Laboratory, School of Mechanical and Production Engineering, Nanyang Technological University, Singapore 639798

K. M. Liew

Center for Advanced Numerical Engineering Simulations, School of Mechanical and Production Engineering, Nanyang Technological University, Singapore 639798

J. Vib. Acoust 121(2), 204-208 (Apr 01, 1999) (5 pages) doi:10.1115/1.2893965 History: Received November 01, 1997; Online February 26, 2008

Abstract

A new numerical technique, the differential quadrature element method (DQEM), has been developed for solving the free vibration of the discontinuous Mindlin plate in this paper. By the DQEM, the complex plate domain is decomposed into small simple continuous subdomains (elements) and the differential quadrature method (DQM) is applied to each continuous subdomain to solve the problems. The detailed formulations for the DQEM and the connection conditions between each element are presented. Several numerical examples are analyzed to demonstrate the accuracy and applicability of this new method to the free vibration analysis of the Mindlin plate with various discontinuities which are not solvable directly using the differential quadrature method.

Copyright © 1999 by The American Society of Mechanical Engineers
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