摘要
基于Von Kármán型大挠度方程,用Galerlkin方法分析了圆锥扁壳在均布压力作用下的后屈曲行为.以正交的Legendre多项式作为试函数,用加权残数法给出锥壳屈曲后的荷载挠度关系式及屈曲的临界荷载.经与有关文献比较,本文使用加权残数法分析锥壳的几何非线性屈曲,方法可行,且简单、明了.
Based on karman large deflection equation the nonlinear post - buckling behavior of a shallow concial shell under uniformly distributed pressure is studied by means of Galerkin method. Using the method of weighted residuals approximation and taking the Orthogonal Legendre multinomial as trial function, the paper has calculated the load - deflection relation and critial load.
出处
《青海大学学报（自然科学版）》
1998年第6期8-12,28,共6页
Journal of Qinghai University(Natural Science)
关键词
圆锥扁壳
后屈曲
加权残数法
非线性
Shallow concial shell, Post-buchling, Weighted residuals approximation
