单壳体潜艇球柱组合壳结构边缘效应分析

Edge effect analysis for sphere-cylinder combined shell of mono-shell submarine

针对单壳体潜艇球柱组合壳结构连接处的边缘效应问题,采用薄壳理论及变形协调条件研究了球柱组合壳结构连接处的构件边界形式,建立了简化边界模型,通过将计算结果与试验数据进行对比分析,验证了简化边界模型的正确性.最后采用简化边界模型分析了球柱组合壳结构的边缘效应,结果表明边缘效应的影响范围是局部的,肋骨相对于球壳厚度对其影响更为显著.

In efforts to analyze the edge effect of a sphere-cylinder combined shell of mono-shell submarine,the edge forms of structural members of a sphere-cylinder combined shell were examined.The study was conducted using thin shell theory,along with a deformation compatibility condition.The simplified edge mode was established and verified to be correct through comparing the results of experimental data and theoretical calculations.Subsequently,the edge effect of the sphere-cylinder combined shell was analyzed by the simplified edge mode,and the results demonstrated that the scope of the edge effect was localized and the influence of the rib was more significant than that of the thickness of the spherical shell.