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

  • 제8권1호
  • /
  • Pages.10-17
  • /
  • 2009
  • /
  • 1598-6721(pISSN)
  • /
  • 2288-0771(eISSN)
한국기계가공학회 (The Korean Society of Manufacturing Process Engineers)
권호 표지

40,000rpm 고속 주축의 정·동특성 향상을 위한 베어링 위치 선정

Selection of Bearing Position for Improving Static and Dynamic Stiffness of 40,000rpm High-speed Spindle

  • 임정숙 (한국기계연구원 부설 재료연구소) ;
  • 정원지 (창원대학교 기계설계공학과) ;
  • 이춘만 (창원대학교 기계설계공학과)
  • 투고 : 2009.01.28
  • 심사 : 2009.03.07
  • 발행 : 2009.03.30
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초록

Spindle design is very important for the improvement of the competitive power in production cost of high quality machine tools. The important factor in spindle design is not only to improve the natural frequency of spindle but also to reduce displacement of spindle end. In this paper, parameters those influence on static and dynamic stiffness of high-speed spindle have selected form preceding studies. And those selected parameters are applied to Taguchi Method. To perform FEM analysis, bearing conditions are selected with optimized condition. To know how to improve static and dynamic stiffness of machine tool spindle, natural frequency and displacement of spindle end are obtained by FEM analysis. The Taguchi Method was used to draw optimized condition of bearing position and it's stiffness. From these results, amplitude of vibration is enough good less than $3{\mu}m$ pk-pk of the spindle of 40,000rpm manufactured in this work by the optimal design.

키워드

참고문헌

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