潜艇全船耐压结构有限元应力分析

本文对潜艇全船耐压结构进行了有限元应力分析，在此基础上，又进行了各局部结构的二级甚至三级离散有限元应力分析，比较了一般环肋圆柱壳、环肋圆锥壳、环肋锥－柱结合壳、横舱壁区域结构，耐压液舱区域结构典型点应力与现有解析算法结果的差异程度，得出了一些有工程实用意义的结论。

Finite Element Stress Analysis of Whole Pressure-hull Structure of Submarine

Finite element analysis(FEA) of the whole pressure hull structure stress of submarine is done in this paper. Furthermore, second even third level discrete finite element stress analysis of local structures is carried out. And then, a comparison of the results of FEA with those from analytical stress calculation is made to see how different they are. Comparison items include the stresses of various representative points of ring stiffened cylindrical shell, ring stiffened conical shell, conic cylindrical hull, transverse bulkhead structure and pressure tank structure. At last, some conclusions valuable for practical engineering use are obtained.