将此类结构离散为三角形平板元素和梁元素的集合体。
The discrete elements used are triangular plate elements and beam elements.
然后从运动方程出发推导了杆元素和梁元素的动刚度矩阵。
Then according to the equations of motion we have developed the dynamic stiffness matrixes of the bar element and beam element.
本文研究了加劲壳的非线性有限元分析方法，提出了一种梁元素来模拟加筋。
The paper studies nonlinear F. E. analysis of stiffened shells, presenting beam element to simulate the stiffeners.
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