拉压不同弹性模量变厚度圆柱壳基本方程及其应用

BASIC EQUATION AND APPLICATION OF CYLINDRICAL SHELL WITH BI-MODULUS AND NON-UNIFORM THICKNESS

本文以变厚度圆柱壳微分单元为分析模型,导出了拉压不同弹性模量复合材料变厚度圆柱壳弯曲问题的平衡微分方程及其关系式。该方程的COLSYS数值解与ANSYS有限元结果比较表明,本文理论公式正确,基本假定合理,可作为复合材料变厚度圆柱壳较为精确的弯曲理论。

Based on the cylindrical shell element with non-uniform thickness, the equilibrium differential equations of the cylindrical shell with non-uniform thickness and different extension-compressive modulus have been educed. The correctness and efficiency of the present theory is demonstrated by comparison between the COLSYS numerical solutions of the present theory and FEM solutions. The present theory can be taken as the precise theory for the cylindrical shell with non-uniform thickness