A Semi-Analytical Solution for Free Vibration and Modal Stress Analyses of Circular Plates Resting on Two-Parameter Elastic Foundations

Journal of Solid Mechanics

مقاله 6، دوره 2، شماره 1، خرداد 2010، صفحه 63-78   

نوع مقاله: Research Paper

نویسندگان

M.M Alipour؛ M Shariyat^* ؛ M Shaban

Faculty of Mechanical Engineering, K.N. Toosi University of Technology

چکیده

In the present research, free vibration and modal stress analyses of thin circular plates with arbitrary edge conditions, resting on two-parameter elastic foundations are investigated.  Both Pasternak and Winkler parameters are adopted to model the elastic foundation. The differential transform method (DTM) is used to solve the eigenvalue equation yielding the natural frequencies and mode shapes of the circular plates. Accuracy of obtained results is evaluated by comparing the results with those available in the well-known references. Furthermore, effects of the foundation stiffness parameters and the edge conditions on the natural frequencies, mode shapes, and distribution of the maximum in-plane modal stresses are investigated.

کلیدواژه‌ها

Free vibration؛ Thin circular plates؛ DTM؛ Two-parameter elastic foundation؛ Modal stress

مراجع

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