Research on Buckling Properties of Toroidal Pressure Hull with Elliptical Cross-section

被引：0
|
作者：
Wang X. [1 ]
Zhang J. [1 ]
Di C. [1 ]
Wang F. [2 ]
机构：
[1] School of Mechanical Engineering, Jiangsu University of Science and Technology, Zhenjiang
[2] Shanghai Engineering Research Center of Hadal Science and Technology, Shanghai Ocean University, Shanghai
来源：
Jixie Gongcheng Xuebao/Journal of Mechanical Engineering | 2022年 / 58卷 / 05期
关键词：
Buckling load; Circular cross-section; Deep sea space station; Elliptical cross-section; Toroidal pressure hull;
D O I：
10.3901/JME.2022.05.144
中图分类号：
学科分类号：
摘要：
The toroidal pressure hull is a kind of optimal structure for the deep-sea space station because of its good compressive strength and hydrodynamic characteristics. The buckling analysis on circular cross-section toroidal shells and ribbed circular cross-section toroidal shells are mainly conducted in existing studies, but experimental support on the study of elliptical cross-section toroidal shells is lacked. In order to further explore the buckling properties of the elliptical cross-section toroidal shells. Through the nonlinear numerical calculation based on the arc length method, the influence of the ratio of the long and short axis of the elliptical section on the buckling load of the toroidal pressure shell is analyzed, and a set of elliptic parameters is optimized. Two resin material elliptical section toroidal shells and two resin material circular cross-section toroidal shells of equal volume and equal mass are made by rapid prototyping technology for geometric measurement, hydrostatic external pressure test and numerical calculation. The results show that the elliptical cross-section pressure shell with the ratio of long and short axis of 1.27 has good compressive performance, and its buckling is 1.718 times that of the equivalent circular cross-section toroidal pressure hull. This study can provide a reference for the innovative design of the manned cabin of the underwater space station. © 2022 Journal of Mechanical Engineering.
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页码：144 / 150
页数：6
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