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Sealing analysis of sealing rings with respect to rubber material properties for high pressure valve of FCEV

FCEV용 고압 밸브 실링부의 고무재질에 따른 기밀해석

  • Park, G.Y. (Department of Energy System Engineering, Korea National University of Transportation) ;
  • Yang, K.J. (Powertrain & Control Components Development Department, UNICK Corporation) ;
  • Ro, E.D. (Powertrain & Control Components Development Department, UNICK Corporation) ;
  • Park, J.S. (Department of Automotive Engineering, Korea National University of Transportation) ;
  • Chon, M.S. (Department of Automotive Engineering, Korea National University of Transportation) ;
  • Lee, H.W. (Department of Automotive Engineering, Korea National University of Transportation)
  • 박근영 (한국교통대학교 에너지시스템공학과) ;
  • 양갑진 (주식회사 UNICK) ;
  • 노의동 (주식회사 UNICK) ;
  • 박준수 (한국교통대학교 자동차공학과) ;
  • 전문수 (한국교통대학교 자동차공학과) ;
  • 이형욱 (한국교통대학교 자동차공학과)
  • Received : 2017.10.30
  • Accepted : 2017.11.13
  • Published : 2017.11.30

Abstract

The design of sealing mechanisms of a manual pressure valve was analyzed with FE analysis for a hydrogen fuels charge and discharge system of FCEV. The damage prediction of the O-ring with respect to the material models of rubbers was calculated by the gap analysis of the backup ring and O-ring according to the internal pressure. Two kinds of the rubber material characteristic models were adopted to the O-ring. One was the linear elastic and the other was hyperelastic of Ogden $3^{rd}$ order model. The experimental data of urethane of Shore hardness 90 was utilized to the curve fitting of hyperelastic properties. It was found that the contact pattern of the backup ring was different in two models and the sealing mechanism was better in the case of the hyperelastic characteristic model.

Keywords

References

  1. Park G. Y, Yang K. J., Ro E., Kim H. C., Park J. S., Chon M. S., and Lee H. W., "Surface pressure and gap analysis of sealing rings of a high pressure manual valve for FCEV", Fall Proceeding of Korea Society for Technology of Plasticity, pp.149-150, 2017
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