摘要
提出一种新型连接结构:在相邻的两段不同直径圆柱壳之间嵌入一段"改型等强度壳",构成"柱-改型-柱"组合壳,使得两段不同直径的圆柱壳光顺地连接,可以大幅度降低结合部的局部弯曲应力。应用旋转壳有矩理论分析了这些组合壳的应力分布,对其工程应用——作为连接结构的"改型等强度壳"几何参数的选择提出了建议。
A new type of connecting structure—modified shell of constant strength is presented. By using this type of connecting structure, two adjacent cylindrical shells of different diameter can be smoothly connected and the bending stress at the conjunction section can be reduced significantly. Then, based on bending theory of shells of revolution, the stress distribution is analyzed for the combined shell named 'cylinder-modified-cylinder', composed of two cylindrical shells of different diameters connected by a modified shell of constant strength. As for engineering application, the modified equicohesive shell can be used as a connecting structure and some recommendations on the choice of the geometrical parameters are proposed.
出处
《工程力学》
EI
CSCD
北大核心
2007年第z2期155-160,共6页
Engineering Mechanics
关键词
旋转壳
应力分析
有矩理论
改型等强度壳
连接结构
工程应用
shell of revolution
stress analysis
bending theory
modified shell of constant strength
connecting structure
engineering application
