壳体稳定性问题的一种数值解法

The Numerical Solution to problems of shell Stability

本文根据力学中的可能位移原理,采用了类似于板的四边形单元建立了壳体稳定时的位移模式,然后导出了刚度矩阵便可求出监界载荷。

According to the principle of the possible displacement in mechanics, the four-side unit element similar to the finite element method of the plate is adoped in this paper and the displacement model of shell is established. Then the stiffness matrix of shell stability is derived and critical loads are calculated.