Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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Study on Optimum Shape of Expansion Joint

신축조인트의 최적화형상에 대한 연구

  • Han, Moonsik (Department of Mechanical & Automotive Engineering, Keimyung University) ;
  • Ahn, Junghyun (Department of Mechanical & Automotive Engineering, Andong National University) ;
  • Yang, Chulho (Department of Mechanical & Automotive Engineering, Andong National University)
  • 한문식 (계명대학교 기계자동차공학과) ;
  • 안정현 (안동대학교 기계자동차공학과) ;
  • 양철호 (안동대학교 기계자동차공학과)
  • Received : 2012.08.09
  • Accepted : 2012.08.20
  • Published : 2013.03.01
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Abstract

Expansion joint has been utilized in many areas including automotive bellows for exhaust system. Usage of expansion joint has been increased due to its inherent flexibility and excellent anti-vibration property. Simple shape of expansion joint is modeled to understand the behavior of joint system. 27 design cases using 3 design factors with 3 levels are constructed by design of experiment. Each case is simulated to find the most influential design factors. Response for this study, maximum stress in the expansion joint, has been used to determine main design factors of joint. Among the 3 design factors, factor B has affected greatly a response in the formation of optimum shape of joint. Also, interaction factor, $A{\times}B$, has also showed its influence to the response of joint. This study showed that design of experiment combined with finite element analysis could be used in the design decision process effectively in the design of expansion joint.

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References

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