【摘要】 用有限元法初步研究了肋骨大小对环肋圆柱壳壳板稳定性的影响，导出了考虑肋骨尺寸影响的壳板稳定性的修正公式，给出了修正系数Ｋ 的变化曲线，修正后的近似解析法理论临界压力与有限元稳定分析结果基本吻合。更多还原

【Abstract】 The influences of frame dimension on the stability of ring stiffened shells are studied by using finite element method, an amendatory formula considering the influence of frame dimension on the stability of shell plate is deduced. And variety curve of the modification coefficients K is presented. The results of the theoretical critical pressure of the approximate analytical method after modification are basically in accord with those of finite element method.更多还原