Abstract
The differential quadrature method (DQM) is a numerical method of which has been successfully employed in a variety of problems in engineering and physical sciences. The DQM is accomplished by expressing at each grid point, the calculus operator value of a function at any discrete point as the weighted linear sum of the values of the function at all the discrete points.
This paper presents an application of the semi-analytical differential quadrature method to analyze vibration of annular sector Mindlin plates with two opposite radial edges simply supported. The convergence and accuracy of the present method are demonstrated to be compared with those obtained by other numerical methods. Good accuracy is obtained. The effects of sector angles and simple supported models on the frequencies of annular sector Mindlin plates are analyzed for the different radii ratios and ratios of width to thickness.
