Journal of the Korean Society of Manufacturing Process Engineers (한국기계가공학회지)

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
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Structural Design of a Front Lower Control Arm Considering Durability

내구성을 고려한 하부 컨트롤 암의 구조설계

  • 박한석 (동아대학교 대학원 기계공학과) ;
  • 김종규 (동아대학교 대학원 기계공학과) ;
  • 서선민 ((주)센트랄 중앙연구소) ;
  • 이권희 (동아대학교 기계공학과) ;
  • 박영철 (동아대학교 기계공학과)
  • Received : 2009.09.16
  • Accepted : 2009.12.08
  • Published : 2009.12.30
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Abstract

Recently developed automotive components are getting lighter providing a higher fuel efficiency and performance. Following the current trend, this study proposes a structural optimization method for the lower control arm installed at the front side of a Vehicle. Lightweight design of lower control arm can be achieved through design and material technology. In this research, the shape of lower control arm was determined by applying the optimization technology and aluminum was selected as a steel-substitute material. Strength performance is the most important design requirement in the structural design of a control arm. This study considers the static strength in the optimization process. For the optimum design, the durability analysis is performed to predict its fatigue life. In this study, the kriging interpolation method is adopted to obtain the minimum weight satisfying the strength constraint. Optimum designs are obtained by the in-house program, EXCEL-Kriging. Also, based on the optimum model obtained for the static strength, the optimization of Index of Fatigue Durability is carried out to get th optimum fatigue performance.

Keywords

References

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