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VACUUM ›› 2023, Vol. 60 ›› Issue (2): 57-62.doi: 10.13385/j.cnki.vacuum.2023.02.10

• Vacuum Acquisition System • Previous Articles     Next Articles

Design and Calculation of O-type Rubber Sealing for Space Environment Simulation Equipment

FENG Zhi-meng1, LIU Hai-jing1, WANG Fei1, LI Can-lun1, QIAO Hong2, JING Jia-rong1   

  1. 1. Shanghai Institute of Spacecraft Equipment, 200240 Shanghai, China;
    2. Contemporary Amperex Technology Co., Limited CATL, 200240 Shanghai, China
  • Received:2022-07-11 Online:2023-03-25 Published:2023-03-27

Abstract: This paper presents a design and calculation method of O-type rubber sealing ring for vacuum. The approximation equation for calculating the elastic deformation pressure of O rubber sealing is derived, combined with the design parameters of O sealing ring that have been successfully used in engineering practice, O rubber seal compression elastic force and atmospheric pressure in vacuum environment are calculated, and the corresponding relationship between them is obtained by polynomial fitting method. The atmospheric pressure of O-type rubber seal ring to be solved is the input condition,and the geometric parameters of O-type rubber seal ring are inversely solved by using the approximate formula of elastic deformation pressure of the seal ring. In order to verify the reliability of the calculation method, Mooeny-Rivlin model was used to simulate the calculation results. The results show that the maximum stress of the flange O-type rubber sealing ring with diameter of 7500mm is about 7.01MPa under atmospheric pressure, and no permanent damage will occur, which proves that the design and calculation method of O-type rubber sealing ring is feasible.

Key words: vacuum seal, O-type rubber sealing, simulation, numerical analysis

CLC Number: 

  • TB42
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