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

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
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Vibration Characteristics of Impeller Shaft for Mixing Machine According to the Positions of a Bearing Support

교반기용 임펠러가 달린 축의 베어링 지지점에 따른 진동특성

  • 홍도관 (한국전기연구원 전동력연구센터) ;
  • 안찬우 (동아대학교 기계공학부) ;
  • 백황순 (동아대학교 기계공학부 일반대학원) ;
  • 최석창 (창원전문대학 자동차기계학부 기계설계전공) ;
  • 박일수 (동명대학교 냉동공조공학과)
  • Received : 2009.06.18
  • Accepted : 2009.08.18
  • Published : 2009.09.30
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Abstract

This paper deals with the dynamic characteristics of the impeller shaft model which is the most important part in developing the resin mixing machine. The can is rotating by air motor in mixing machine. Then the end of shaft is fixed. The bearing support is to increase the fundamental natural frequency. The natural frequency analysis using finite element analysis software are performed on the imported commercial impeller shaft model. This paper presents calculated bearing stiffness of Soda, Harris and modified Harris formula considering contact angle according to bearing supported position. The most important fundamental natural frequency of the impeller shaft except bearing support is around 13.932 Hz. This paper presents one bearing and two bearings support position to maximize the 1st natural frequency. The maximized fundamental natural frequency is around 48.843 Hz in one bearing support and 55.52 Hz in two bearings support.

Keywords

References

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