Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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A Study on Contact Deformation of Automotive Door Weatherstrip Using Non-linear Finite Element Method

비선형 유한요소법을 이용한 자동차 도어 웨더스트립의 접촉변형에 관한 연구

  • Kim Byung Soo (Industrial Liaison Innovation Cluster, Pusan National University) ;
  • Moon Byung-Young (Department of Mechanical Design Engineering, Pusan National University) ;
  • Kim Kwang-Hoon (Department of Mechanical and Vehicle Engineering, Inje University)
  • 김병수 (인제대학교 기계자동차공학부) ;
  • 문병영 (부산대학교 동남권부품소재산학협력혁신사업단) ;
  • 김광훈 (부산대학교 기계설계공학과)
  • Published : 2005.07.01
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Abstract

In vehicle door system, weatherstrip seals protect passengers form noise, dust, rain and wind out of the vehicle. The higher efficient a weatherstrip is, the more durable it is in contact between the door and body frame. In this study, nonlinear finite element(FE) analysis is performed to obtain cauchy-stresses, displacements and reaction forces of the weatherstrip. Mechanical properties of the weatherstrip is obtained by uniaxial tension test. The MARC which is a commercial software for the nonlinear analysis of a flexible FE model is used. Twenty-one cases of the FE model are developed by using Ogden-foam formulation. In the results of nonlinear FE analysis, the most valuable deformation of the weatherstrip occurred when displacement control value reaches 7.2mm. Severe deformation is observed as the displacement control value become more increased. When the weatherstrip is designed, it would be considered that the displacement value of the weatherstrip has to be less than 7.2mm.

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References

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