| 载人深潜器钛合金耐压球壳极限强度可靠性分析 |
| |
| 引用本文： | 石佳睿,唐文勇.载人深潜器钛合金耐压球壳极限强度可靠性分析[J].船海工程,2014(2):114-118. |
| |
| 作者姓名： | 石佳睿 唐文勇 |
| |
| 作者单位： | 上海交通大学海洋工程国家重点实验室,上海200240 |
| |
| 基金项目： | 国家863重点项目计划（2009AA093303） |
| |
| 摘 要： | 以研制中的全国产化4 500 m级载人深潜器为背景,采用非线性有限元和弧长法计算钛合金球壳极限强度,通过有限元计算得到考虑多参数影响的球壳极限强度拟合公式。基于响应面法对完整球壳以及开孔球壳进行可靠性计算,分析随机变量参数敏感性,讨论球壳厚度、内半径、初始缺陷幅值及开孔连接处角度等不同参数对钛合金耐压球壳可靠性指标的影响。
|
| 关 键 词： | 耐压球壳 极限强度 结构可靠性 初始缺陷 开孔结构 |
Ultimate Strength Reliability Analysis of Titanium Alloy Spherical Pressure Shell in HOV |
| |
| Authors: | SHI Jia-rui TANG Wen-yong |
| |
| Institution: | (State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, Shanghai 200040, China) |
| |
| Abstract: | Taking the 4 500 meter HOV which is manufacturing by our nation as reference , the non-liner FEM and risk method were used to analyze ultimate strength of the titanium alloy spherical shell , and the ultimate strength fitting equation was acquired which considering multi-factors by large numbers of FE calculations .The structural reliability of perfect spherical shell and the shell with opening was calculated by the response surface method .The influences of different factors on titanium alloy spherical pressure shell were also provided , these factors includes thickness of spherical shell , inside diameter , magnitude of ini-tial imperfection, and the angle between opening and spherical shell . |
| |
| Keywords: | pressured spherical shell ultimate strength structural reliability initial imperfection structural with opening |
| 本文献已被 CNKI 维普 等数据库收录！ |
