本文以古典層殼理論(classical laminated shell theory , CST )為基礎，分析開放性正交疊層圓柱殼在不同邊界條件下受撓曲作用之力學行為，將古典層殼理論之偏微分控制方程式，利用廣義微分數值法(generalized differential quadrature method)，並配合適宜之邊界條件，轉化為線性代數方程組，求得各位移量及應力(membrane stresses)量。文中針對一至三層之圓柱層殼，以微分數值法與古典層殼理論解作一比較，並探討微分數值法取樣點多寡對於數值結果之收斂性。

　　According to classical shell theory(CST), the analysis of bending of cross-ply cylindrical shells with different boundary conditions is presented. Using generalized differential quadrature method(GDQ), we can transform the government equations(partial differential equations) according to CST to linear algebraic equations, setting suitable boundary conditions, and get all displacements and membrane stresses finally. In this article, to examine the GDQ method of cylindrical shells of one to three layers, a comparison of the results with CST was carried out. And discuss the convergence of the results from the number of sampling points.

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