中心分布压力作用下圆底扁锥壳的大挠度问题

LARGE DEFLECTIONS OF SHALLOW CONICAL SHELLS UNDER CENTRALLY DISTRIBUTED PRESSURES

摘要: 本文研究圆底扁锥壳在中心分布压力作用下的轴对称大挠度变形和稳定性,提出了求解圆底扁锥壳非线性方程的牛顿-样条函数方法,分别讨论了当几何参数λ固定时载荷作用半径的变化对壳体屈曲性质的影响以及当载荷作用半径固定时几何参数λ的变化对壳体屈曲性质的影响,对ν=0.3的情形给出了数值分折结果。

Abstract: In this paper the deformations and stability in large axisymmetric deflections of shallow conical shells under centrally distributed pressures are investigated, The Newton-spline method for solving the nonlinear equations governing large axisymmetrie deflection of shallow conical shells is presentetd The buckling behavior is studied for a shell with fixed geometry when he size of the loaded area is allowed to vary, and for a fixed loaded area when the shell geometry is allowed to vary, Numerical results are given for v=0.3.