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  • 저자

    김종무

  • 학위수여기관

    昌原大學校

  • 학위구분

    국내석사

  • 학과

    機械設計工學科

  • 지도교수

  • 발행년도

    2002

  • 총페이지

    viii, 47장

  • 키워드

  • 언어

    kor

  • 원문 URL

    http://www.riss.kr/link?id=T8935865&outLink=K  

  • 초록

    This study introduces an optimum design of the high speed spindle system for minimum critical speed, compliance, and weight construction using a genetic algorithm. The disk, shaft, and bearing components of a spindle system are modelled as appropriate finite elements respectively. In the design optimization, the shaft length, the shaft outer diameter, the shaft inner diameter, bearing positions (or bearing span) and bearing stiffness were set as design variables. The unique objective function is obtained by multiplying an appropriate weighting factor by multi-objective functions, such as critical speed, compliance, and the total weight. The constraints are limitations of maximum critical speed and weight, and the vibration limit of the spindle system. Optimization results show that critical speed, weight, and the compliance are reduced by 18.6% , 2.2% and 36% respectively compared with the initial spindle system.


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