球面舱壁的弹性稳定性分析  

Elastic buckling analysis of spherical bulkheads

作　　者：黄旎[1] 夏飞[1] 胡刚义[1] 钱群[1] 肖伟[1] 

机构地区：[1]中国舰船研究设计中心,湖北武汉430064

出　　处：《舰船科学技术》2012年第7期35-39,共5页Ship Science and Technology

摘　　要：基于静力法求解结构临界荷载的基本原理,导出旋转壳在均匀外压下弹性稳定性问题的一阶控制微分方程组。借助齐次扩容技术和精细积分法,采用Riccati传递矩阵法对均匀外压下球面舱壁的弹性稳定性问题进行数值求解。同时分析了各个参数(球壳半径、球壳厚度、环壳半径、环壳厚度和锥壳半锥角)对球面舱壁临界压力的影响。计算结果表明,各个参数中仅球壳半径和球壳厚度对结构的临界压力和失稳波数起决定性作用。Based on the theory of calculating the critical load by means of statics method,one-order ordinary differential equations for the elastic buckling of revolutionary shells is derived.By means of the extended homogeneous capacity and high precision integration method,the elastic buckling solution of spherical bulkheads is obtained by using Riccati transfer matrix method.And the influence of the parameter（the radius of the spherical shell,the thickness of the sphere shell,the radius of the toroid shell,the thickness of the toroid shell,and the gradient of the cone shell） is examined.The calculated result show that the radius and the thickness of the sphere shell play a vital role in buckling analysis.

关 键 词：球面舱壁 传递矩阵法 稳定性 

分 类 号：U663.4[交通运输工程—船舶及航道工程]