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    題名: Free Vibrations of Homogenous Isotropic Viscothermoelastic Spherical Curved Plates
    作者: Sharma, D. K.
    關鍵詞: Toroidal;Spheroidal;Stresses;Vibrations;Matrix Fröbenius Method;Spherical Structures
    日期: 2016-06
    上傳時間: 2016-12-27 09:29:19 (UTC+8)
    出版者: 淡江大學出版中心
    摘要: In this paper free vibration analysis of viscothermoelastic spherical curved plate has been presented to study the spheroidal and toroidal vibrations. The basic governing partial differential equations have been reduced to ordinary differential equations for time harmonic vibrations. Coupled systems of equations represent spheroidal vibrations, while uncoupled equation corresponds to toroidal vibrations. These uncoupled vibrations remain independent of temperature variations. Matrix Fröbenious method of extended power series has been applied to derive the formal solution of the coupled system of ordinary differential equations. The analytical results have been computed numerically for polymethyle methacrylate material. The fundamental iteration technique have been used to compute eigen values and corresponding eigen functions to represent field quantities with the help of MATLAB software. The numerical results in respect of lowest frequency, dissipation factor, stresses, displacements and temperature change have been presented graphically.
    關聯: Journal of Applied Science and Engineering 19(2), pp.135-148
    DOI: 10.6180/jase.2016.19.2.04
    顯示於類別:[淡江理工學刊] 第19卷第2期

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