在深海资源开发和发展深海技术的背景下，我国完成了载人潜水器的谱系化建设。近年随着对水下观测需求的增加，全通透载人潜水器引起广泛关注。本文基于有机玻璃试件压缩试验的结果，在LS-DYNA软件中建立有限元模型，通过试件模拟失效模式与试验结果对比，对典型的全透明深海耐压载人潜水器的失效分析进行敏感性研究。在准静态外压下进行极限强度分析之前，进行一阶线性屈曲模态分析以模拟初始几何缺陷。对有机玻璃载人潜水器的耐压壳失效形式和极限载荷进行分析，采用有限元分析方法，研究特定厚度半径比的有机玻璃载人潜水器的临界载荷，为其制造提供技术指导。
With development of deep-sea resources and deep-sea technology, China has basically completed the genealogy construction of deep manned submersibles with this goal. In recent years, with the increasing demand for underwater observation, deep-sea fully transparent pressure hulls have attracted widespread attention. This paper is based on the mechanical research results of compression tests on the material specimens, the finite element model in LS-DYNA software is established. By comparing the simulated failure modes of the specimens with the experimental results, sensitivity research is conducted on the failure analysis of typical fully transparent deep-sea pressure resistant hull. Before conducting ultimate strength analysis under quasi-static external pressure, first-order linear buckling modal analysis is performed to simulate initial geometric defects. The failure mode and ultimate load of the pressure hull of the pressure hull are analyzed, the critical load of the manned submersible with a specific thickness radius ratio is studied, which is providing technical guidance for fully transparent manufacturing.
2024,46(17): 14-19 收稿日期：2023-10-16
DOI：10.3404/j.issn.1672-7649.2024.17.003
分类号：TP242
基金项目：科技部重点研发计划资助项目（2021YFC2800600）；国家自然科学基金资助项目（52101320）
作者简介：吴瑜(1986-),女,博士,副教授,研究方向为深海耐压壳研发
参考文献：
[1] 叶聪, 曹俊, 刘帅. 国外载人深潜技术的创新与发展 [J]. 舰船科学技术, 2023, 45(1): 1-7.
YE Cong, CAO Jun, LIU Shuai. Innovation and development of foreign manned deep submergence technology[J]. Ship Science and Technology, 2023, 45(1): 1-7.
[2] 罗珊, 王纬波. 潜水器耐压壳结构研究现状及展望 [J]. 舰船科学技术, 2019, 41(19): 7-16.
LUO Shan, WANG Weibo. Status and prospects on the pressure shell structure of submersible[J]. Ship Science and Technology, 2019, 41(19): 7-16.
[3] STACHIW J D. Development of economical casting process for NEMO-Type acrylic submersible hulls[J]. Journal of Engineering for Industry, 1977, 6: 493-507.
[4] ZOELLY R. Ueber ein Knickungsproblem am der Kugelschale[M]. Dissertation, Zürich.
[5] DONNELL L H, WAN C C. Effect of imperfections on buckling of thin cylinders and columns under axial compression[J]. Journal of Applicatiom Mechanics, 1950, 17(1): 1-5.
[6] KOITER W T. On the stability of elastic equilibrium, thesis presented to the Technical University at Delft, Amsterdam, The Netherlands. In: Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy[M]. English Translation. NASA Tech. Ph. D. Dissertation, Delft, Holland 1945.
[7] MANUEL S. The influence of prebuckling deformations and stresses on the buckling of perfect cylinders[R]. NASA TR-190. 1964.
[8] KARMAN V T. The buckling of thin cylindrical shells under axial compression[J]. Journal. Aeronaut. Science., 1941, 8(8): 303-312.
[9] PAN B B, CUI W C. 2010. An overview of buckling and ultimate strength of spherical pressure hull under external pressure[J]. Marine Structures, 2010, 23(3): 227-240
[10] PAN B B, CUI W C, SHEN Y S, et al. Further study on the ultimate strength analysis of spherical pressure hulls[J]. Mar. Struct., 2010, 23(4): 444-461.
[11] 杜青海, 高睿, 崔维成. 全海深载人潜水器厚观察窗结构的强度研究[J]. 中国造船, 2019, 60(2): 1-12.
[12] 中国船级社. 潜水系统和潜水器入级规范[M]. 2018.
[13] WALTER W, URSULA A. Buckling behavior of imperfect spherical shells[J]. International Journal of Non-Linear Mechanics, 2002, 43: 569-604.
[14] GEORGE Z, VOYIADJIS P W. A refined theory for thick spherical shells[J]. International Journal of Solids and Structures, 2004, 41: 3747-3769.
[15] ZHANG J, ZHANG M, PAN B B. Elastic-plastic buckling of deep sea spherical pressure hulls[J]. Marine Structures, 2018, 57: 38-51.
[16] LI J X, LIU P F, TONG X Y. A simplified method for studying cyclic creep behaviors of deep-sea manned submersible viewport windows[J]. International Journal of Pressure Vessels and Piping, 2021, 194: 104565.
[17] LIU P F, LI J X, WANG S B, et al. Finite element analysis of viscoelastic creep behaviors of deep-sea manned submersible viewport windows[J]. International Journal of Pressure Vessels and Piping, 2020, 188: 104218.
[18] WANG F, WANG M Q, WANG W W, et al. Time-dependent axial displacement of PMMA frustums designed for deep-sea manned cabin based on finite element analysis[J]. Ships and Offshore Structures, 2021, 16(8): 827-837.
[19] 刘涛. 深海载人潜水器耐压球壳设计特性分析[J]. 船舶力学. 2007, 11(2): 214-220.
[20] 陆蓓, 刘涛, 崔维成. 深海载人潜水器耐压球壳极限强度研究[J]. 船舶力学, 2004, 8(1): 51-58.
