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Optimization of Specific Film Thickness for a Disc Cam Using Genetic Algorithm

유전자 알고리즘을 이용한 원판 캠의 비 유막두께 최적화

  • 권순만 (창원대학교 기계설계공학과) ;
  • 김창현 (창원대학교 대학원 기계설계공학과) ;
  • 남형철 (창원대학교 대학원 기계설계공학과) ;
  • 신중호 (창원대학교 기계설계공학과)
  • Published : 2008.11.01

Abstract

The rate of wear of cam followers in a valve train system is mainly a function of contact stress between the cam and the follower, sliding velocity and hydrodynamic film thickness between the two mating surfaces. The wear or surface fatigue can be reduced by maximizing the elastohydrodynamic film thickness. In this paper, an attempt has been made to estimate the optimal specific film thickness of cam-follower system quantitatively. A general TES polynomial function with real values of exponents is developed and genetic algorithm (GA) is used as optimization techniques for maximizing the minimum specific film thickness. The optimization programs enumerate values of the exponents for synthesis of cam displacement curves. The results show that the minimum film thickness can be increased considerably, e.g. approximately 7% in this paper.

Keywords

References

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