集中载荷作用下变厚度开顶扁球壳的非线性稳定问题

Nonlinear Stability of Truncated Shallow Spherical Shell with Variable Thickness under Concentrated Load

首先应用逐步加载法将具有硬中心的开顶扁球壳在集中载荷作用下的非线性微分方程组线性化，然后利用样条配点法解线性微分方程组，得到了临界载荷的大小。

In this paper, to begin with, the nonlinear differential equations of a truncated shallow spherical shell with variable thickness under a concentrated load are linearized by step by step loading method. The linear differential equations can be solved by spline collocation method. Critical loads have been obtained.