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首页> 外文期刊>The Proceedings of the International Offshore and Polar Engineering Conference >A Study on the Pressure Vessel Design, Structural Analysis and Pressure Test of a 6,000 m Depth-rated Unmanned Underwater Vehicle
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A Study on the Pressure Vessel Design, Structural Analysis and Pressure Test of a 6,000 m Depth-rated Unmanned Underwater Vehicle

机译：深度为6,000 m的无人水下航行器的压力容器设计，结构分析和压力试验研究

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摘要

KORDI-KRISO (Korea Ocean Research & Development Institute - Korea Research Institute of Ships & Ocean Engineering) is currently conducting the development of an unmanned underwater vehicle (UUV) for 6,000 m deep-sea exploration, which will be completed in 2006. Several pressure vessels will be mounted on the UUV frame for loading electric and electronic equipment. The pressure vessels are constructed with titanium alloy Ti-6Al-4V for two main cylindrical canisters and with aluminum alloy Al6061-T6 for several hemispherical housings of electric motor drivers, respectively. This paper presents the design process of the pressure vessels and experimental results acquired by high-pressure tests, which were conducted with the cooperation between KORDI-KRISO and JAMSTEC (Japan Agency for Marine-Earth Science and Technology). The pressure vessels were designed based on the buckling analysis as well as structural yielding analysis, and checked the safety by the FEA (Finite Element Analysis) and analytical (empirical) formula. Moreover, by structural reliability analysis, the cylindrical part and the end-plates of the main pressure vessels made of Ti-6Al-4V were designed with a safety rate of 99.98% under circumstance of 75MPa which is the same pressure and safety rate 1.25 as with the operating depth of the pressure vessel. The pressure housings made of Al6061-T6 also were designed with the same safety factor. Pressure test was performed with the large high-pressure environment simulation unit of JAMSTEC. The pressure vessels made of the titanium alloy and the aluminum alloy were safe even when they were under pressure of 75.46MPa. Test results show that there are less than 5% difference between the FEA and the high-pressure test.
机译：KORDI-KRISO（韩国海洋研究与开发研究所-韩国船舶与海洋工程研究所）目前正在开发用于6,000 m深海勘探的无人水下航行器（UUV），该水下航行器将于2006年完成。容器将安装在UUV机架上，用于装载电气和电子设备。压力容器分别用钛合金Ti-6Al-4V和2个主要的圆柱形圆柱体制成，铝合金容器Al6061-T6分别用在几个电动驱动器的半球形壳体中。本文介绍了压力容器的设计过程和通过高压试验获得的实验结果，这些试验是在KORDI-KRISO和JAMSTEC（日本海洋地球科学技术局）的合作下进行的。基于屈曲分析和结构屈服分析来设计压力容器，并通过有限元分析（FEA）和分析（经验）公式检查安全性。此外，通过结构可靠性分析，设计了由Ti-6Al-4V制成的主压力容器的圆筒形部分和端板，在75MPa的压力下安全度为99.98％，压力和安全度为1.25。与压力容器的工作深度有关。由Al6061-T6制成的压力外壳的设计也具有相同的安全系数。使用JAMSTEC的大型高压环境模拟单元进行了压力测试。由钛合金和铝合金制成的压力容器即使在75.46MPa的压力下也很安全。测试结果表明，FEA和高压测试之间的差异小于5％。

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