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VACUUM ›› 2021, Vol. 58 ›› Issue (5): 37-41.doi: 10.13385/j.cnki.vacuum.2021.05.05

• Vacuum Acquisition System • Previous Articles     Next Articles

Finite Element Analysis of Vacuum Sealing Performance of O-ring

REN Qi-chen1,2, SUN Zhi-he1,2, WANG Pei1,2, HU Ju-li1,2, LU Mao-lei1,2, HUANG Qian1,2   

  1. 1. Vacree Technology Co. , Ltd, Hefei 230088, China;
    2. Anhui Key Laboratory of Low Temperature Technology, Hefei 230088, China
  • Received:2020-07-11 Online:2021-09-25 Published:2021-09-23

Abstract: Vacuum vessels usually use O-ring rubber with rectangular sealing groove to achieve vacuum sealing. In this paper, the design of O-ring vacuum seal is introduced. The nonlinear finite element analysis models of two kinds of rectangular sealing groove of O-ring are established by ANSYS. The changes of Von Mises stress, contact stress and contact length of O-ring under different compression ratio and vacuum are studied. The change of vacuum leakage rate under different compression rate is calculated and analyzed. It may provide a basis for reliable design and performance optimization of O-ring vacuum sealing of vacuum vessel.

Key words: vacuum sealing, Von Mises stress, contact stress, leak rate

CLC Number: 

  • TB743
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