First, the equations of vibration were established using the theory of thin shallow shells.

首先利用扁壳体理论建立了大跨柔性屋盖的振动方程。

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First, the fundamental equations of flat membrane structures are obtained by applying the non-moment theory of thin shallow shells.

首先，利用扁壳的无矩理论得到了平坦薄膜结构的基本力学方程。

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A new time-mode approach to nonlinear axisymmetric free vibrations of cylindrically orthotropic thin shallow spherical shells is presented in this paper.

本文给出了一种研究圆柱正交异性扁薄球壳非线性轴对称自由振动的新的时间模方法。

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