Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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A Study on the Exhaust System Model for Thermal Stress Analysis of Exhaust Manifold

배기매니폴드의 열응력 해석을 위한 배기계 모델 구성에 관한 연구

  • 최복록 (강릉원주대학교 기계자동차공학부) ;
  • 이경우 (현대자동차 파워트레인해석팀) ;
  • 장훈 (현대자동차 파워트레인해석팀)
  • Received : 2009.09.02
  • Accepted : 2010.05.03
  • Published : 2010.11.01
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Abstract

In this study, we investigated the efficient FE modelling techniques for thermal stress analysis of the exhaust manifold subject to thermo-mechanical cyclic loadings. At first, full engine model was considered to identify the critical locations and their results were compared to failure site shown by the engine bench test. And the equivalent system model was proposed based on the mechanical behavior of the full engine model. The weak areas of both FE models show a good agreement with the experimental crack location. As a result, a simplified modelling methodology was verified to estimate the thermo-mechanical behaviors of the exhaust manifold under thermal shock test condition.

Keywords

References

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