| 深海载人潜水器有开孔耐压球壳的极限强度 |
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| 引用本文： | 俞铭华,王仁华,王自力,李良碧.深海载人潜水器有开孔耐压球壳的极限强度[J].中国造船,2005,46(4):92-96. |
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| 作者姓名： | 俞铭华 王仁华 王自力 李良碧 |
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| 作者单位： | 江苏科技大学船舶与海洋工程学院,江苏,镇江,212003 |
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| 基金项目： | 国家科技攻关项目，江苏省重点实验室基金 |
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| 摘 要： | 钛合金制深海载人潜水器耐压球壳属中厚度壳结构,上面设有人孔、观察窗等多个开孔,加工建造过程中又会产生初始缺陷,因此,这类结构的极限强度乃是设计者所必须关注的问题.本文利用ANSYS软件对上述有开孔耐压球壳的极限强度进行非线性有限元分析,计算了局部缺陷范围及幅值的变化对壳体极限强度的影响.计算结果表明,有围壁加强的开孔耐压球壳与无开孔耐压球壳的极限强度相差不大.
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| 关 键 词： | 船舶、舰船工程 潜水器 耐压球壳 开孔 极限强度 初挠度 |
| 文章编号： | 1000-4882(2005)04-0092-05 |
| 收稿时间： | 10 22 2004 12:00AM |
| 修稿时间： | 05 22 2005 12:00AM |
Research on the Ultimate Strength of Pressure Spherical Shell with Openings in Manned Deep-sea Submersible |
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| YU Ming-hua,WANG Ren-hua,WANG Zi-li,LI Liang-bi.Research on the Ultimate Strength of Pressure Spherical Shell with Openings in Manned Deep-sea Submersible[J].Shipbuilding of China,2005,46(4):92-96. |
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| Authors: | YU Ming-hua WANG Ren-hua WANG Zi-li LI Liang-bi |
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| Institution: | School of Naval Architecture and Ocean Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China |
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| Abstract: | The pressure spherical shell made of titanium alloy in the manned deep-sea submersible is moderate-thick shell. There are many openings in the pressure spherical shell, such as manhole, observation windows and so on. There occur many initial imperfections in building. In order to obtain the ultimate strength of the pressure spherical shell with openings and initial imperfections, the nonlinear finite element analysis is performed by ANSYS in this perfections on the ultimate strength of shell in detail. paper. Authors study the influence of local imCalculation results show that the difference between the ultimate strength of the pressure spherical shell with the openings with coaming reinforce ment and the ultimate strength of the pressure spherical shell with no opening is small. |
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| Keywords: | ship engineering submersible pressure spherical shell opening ultimate strength initial imperfection |
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