• 作者： 芮涵芝
• 作者服務機構： 私立淡江大學物理系
• 中文摘要： 我們發現，至少在一些實際的例子中，要用蓋羅根步驟得一板之橫向振盪的良好近似解，橫向撓曲函數的選擇除了具有正確的振模型態和滿足邊界條件之外，尚須符合其他物理上的要求。在另一方面，若以上因素都經考慮，則計算結果發現線性角頻率對撓曲函數的形態不具敏感性。在本研究中所用的實例是正交異向性實心和空心圓盤的橫向振盪。
• 英文摘要： We found that, at least in specific cases, in order to obtain good approximation in dealing with thetransverse vibrations of plates using the Galerkin procedure, the transverse deflection function must be sochosen that it not only possesses the correct mode shape and satisfies the boundary conditions, but alsomeets other physical requirements. On the other hand, if these are all taken into consideration, the numeri-cal results of linear angular frequency are found to be insensitive to the form of this function. The trans-verse vibrations of both orthotropic circular and annular plates were used in this study.
• 中文關鍵字： Galerkin; Galerkin procedure; Galerkin approximation; vibrations; orthotropic plates
• 英文關鍵字： --