Large-scale Vacuum Vessel Design and Finite Element Analysis

• Published in: Chinese journal of aeronautics Vol. 25; no. 2; pp. 189 - 197
• Main Authors: WANG, Wenlong, CAI, Guobiao, ZHOU, Jianping
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.04.2012
• Subjects: buckling; chamber; design; finite element method; hinges; vacuum; 位移变化; 实验系统; 容器设计; 有限元分析; 有限元方法; 真空室; 真空羽流; 结构设计; finite element method; buckling; hinges; vacuum; chamber; design
• ISSN: 1000-9361
• DOI: 10.1016/S1000-9361(11)60378-6

The vacuum plume effects experimental system （PES） is the first experimental system designed to study the effects of vacuum plume in China. The main equipment, a vacuum chamber of 5.5 m in diameter and 12.8 m in length, and structure design of hinged door are described. The finite element method （FEM） is adopted to analyze the static strength and stability of the PES vacuum chamber. It is demonstrated that the static strength and stability are qualified. For the 5.5 m diameter vacuum chamber door, three design schemes are put forward. After comparisons are made, the single-axis-double-pin hinged door is selected. The FEM is applied to checking its static strength as well as distortions. The results show that the door’s distortion and displacement change mainly due to the gravity of the door which leads to its sinking. The calculated displacement is less than 7.8 mm, while the actual measurement is 5 mm. The single-axis-double-pin hinged door mechanism completely satisfies the design requirements. This innovative structure can be introduced as a reference for the design of large-scale hinged doors.