Journal of Applied Science and Engineering

Published by Tamkang University Press

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Ming-Hung Hsu This email address is being protected from spambots. You need JavaScript enabled to view it.1

1Department of Electrical Engineering, National Penghu University, Penghu, Taiwan 880, R.O.C.


 

Received: February 20, 2006
Accepted: April 24, 2006
Publication Date: September 1, 2007

Download Citation: ||https://doi.org/10.6180/jase.2007.10.3.02  


ABSTRACT


This work discusses an efficient numerical approximation technique that called the differential quadrature method. The free vibration problems of annular plates are numerically formulated using the modified differential quadrature method and differential quadrature method. The modified differential quadrature method does not use the δ method. Appropriate boundary conditions accompany the modified differential quadrature method to transform the partial differential equation of an annular plate into a discrete eigenvalue problem. The effect of δ on the accuracy variation of calculated natural frequencies are investigated. Numerical results indicated that the accuracy of the calculated results is improved significantly by employing the modified differential quadrature method.


Keywords: Differential Quadrature Method, Modified Differential Quadrature Method,  Method, Annular Plates, Free Vibration


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