全海深载人潜水器超高强度钢制载人球壳的极限强度分析与模型试验  

Ultimate strength analysis and model tests for full-ocean-depth manned cabin

作　　者：于爽 胡勇[2] 王芳[2] 杨青松[2] 崔维成[2] YU Shuang;HU Yong;WANG Fang;YANG Qing-song;CUI Wei-cheng(College of Engineering Science & Technology,Shanghai Ocean University,Shanghai 201306,China;Shanghai Engineering Research Center of Hadal Science and Technology,Shanghai Ocean University,Shanghai 201306,China)

机构地区：[1]上海海洋大学工程学院,上海201306 [2]上海深渊科学工程技术研究中心上海海洋大学,上海201306

出　　处：《船舶力学》2019年第1期51-57,共7页Journal of Ship Mechanics

基　　金：国家自然科学基金面上项目(51679133);国家自然科学基金重点项目(51439004);上海市2014曙光计划(14SG49)

摘　　要：载人耐压舱是保证载人潜水器安全性的最核心部件,文章主要针对上海海洋大学正在研制的万米载人潜水器开展载人球壳的极限强度理论分析和模型试验研究。该载人耐压球壳采用超高强度马氏体镍钢。有限元分析包括静应力分析和屈曲分析,获得了耐压球壳的极限强度和失效模式;在此基础上,设计了模型球进行了极限破坏试验。通过有限元分析结果和试验结果对比,获得了球壳极限破坏压力失效模式和加载过程中球壳表面应变的变化历程。试验结果和有限元结果基本一致,验证了设计方法对马氏体镍钢球壳的适用性。该研究为后续全海深耐压球壳的设计提供了可靠的试验和理论基础。The reliability of manned cabin is a key issue for the safety of a human occupied vehicle,especially for one which will operate for full ocean depth.A new full-ocean-depth manned submersible is being developed in Shanghai Ocean University and a type of high strength maraging steel is a candidate material used for the manned cabin.This paper focuses on the ultimate strength assessment of the manned cabin.Theoretical analysis,finite element analysis and model test are used to assess the ultimate strength for the model.According to the theoretical analysis and model test,some useful conclusions are drawn,which will provide basis for design of the full-ocean-depth manned submersible.

关 键 词：马氏体镍钢 耐压球壳模型 有限元分析 试验验证 

分 类 号：U661.43[交通运输工程—船舶及航道工程] U674.94[交通运输工程—船舶与海洋工程]