Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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A Study on the Optimization of Grinding Energy Density for a Non-linear Grinding System with Dual Time Delay

이중 시간지연을 가지는 비선형 연삭기의 가공 에너지 밀도 최적화 연구

  • Jung, Jeehyun (Graduate School of Mechanical Engineering, College of Engineering, Chung-Ang Univ.) ;
  • Kim, Pilkee (Graduate School of Mechanical Engineering, College of Engineering, Chung-Ang Univ.) ;
  • Lee, Jung-In (Graduate School of Mechanical Engineering, College of Engineering, Chung-Ang Univ.) ;
  • Lee, Sooyoung (Graduate School of Mechanical Engineering, College of Engineering, Chung-Ang Univ.) ;
  • Lee, Jong-Hang (Department of Mechanical Engineering, Korea Polytechnic Univ.) ;
  • Kim, Kyung-Dong (Korea Machine Tool Manufacturers' Association) ;
  • Seok, Jongwon (School of Mechanical Engineering, College of Engineering, Chung-Ang Univ.)
  • 정지현 (중앙대학교 기계공학부 대학원) ;
  • 김필기 (중앙대학교 기계공학부 대학원) ;
  • 이정인 (중앙대학교 기계공학부 대학원) ;
  • 이수영 (중앙대학교 기계공학부 대학원) ;
  • 이종항 (한국산업기술대학교 기계공학과) ;
  • 김경동 (한국공작기계산업협회) ;
  • 석종원 (중앙대학교 기계공학부)
  • Received : 2013.03.08
  • Accepted : 2013.03.27
  • Published : 2013.05.01
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Abstract

The present study treats the optimization process for a non-linear grinding system with dual time delay, mainly from the energetic viewpoint. To this end, the stability of the grinding system is investigated first with regard to the grinding wheel rotation speed. The concept of grinding energy density is newly proposed as the primary figure of merit and this quantity is evaluated at various stable and limit cycle conditions. The computational results show that simple monotonic trend in energy density is observed under stable conditions, whilst rather complicated behaviors can appear when the conditions are associated with limit cycle oscillations. Finally, the relations between the vibration amplitude and the energy density and their implications on the engineering decision/compromise are discussed.

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References

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