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Dynamic Analysis of Rotor Systems Considering Ball Bearing Contact Mechanism

볼 베어링의 접촉 메커니즘을 고려한 회전체 시스템의 동적 해석

  • Kim, YoungJin (Dept. of Mechanical Engineering, Chungnam Nat'l Univ.) ;
  • Lee, Jongmahn (Dept. of Mechanical Engineering, Chungnam Nat'l Univ.) ;
  • Oh, Dongho (Dept. of Mechanical Engineering, Chungnam Nat'l Univ.)
  • 김영진 (충남대학교 공과대학 기계공학과) ;
  • 이종만 (충남대학교 공과대학 기계공학과) ;
  • 오동호 (충남대학교 공과대학 기계공학과)
  • Received : 2013.10.09
  • Accepted : 2013.11.15
  • Published : 2013.12.01

Abstract

We propose a finite element modeling method considering the ball bearing contact mechanism, and the developed method was verified through experimental and analytical results of inner and outer race-type rotor systems. A comparison of the proposed method with conventional method reveals that there is little difference in the results of the inner race-type rotor system, but there are considerable differences in the results of the outer race-type rotor system such that predictions of greater accuracy can be made. Therefore, the proposed method can be used for accurately predicting the dynamic characteristics of an outer race-type rotary machine.

Keywords

Rotor Dynamics;Finite Element Analysis;Ball Bearing;Campbell Diagram

Acknowledgement

Supported by : 한국에너지기술평가원(KETEP)

References

  1. Kim, W.D., 1993, "Effect of Misalignment on The Fatigue Life of Ball Bearing", Ph.D. Dissertation, Seoul National University.
  2. Tedric, A. H. and Michael, N. K., 2007, "Rolling Bearing Analysis," Fifth Edition, Talyor & Francis, USA
  3. Chen, J. S. and Hwang, Y., 2006, "Centrifugal Force Induced Dynamics of a Motorized High-Speed Spindle," Int. J. Adv. Manuf. Technol, Vol. 30, No. 1-2, pp. 10-19 https://doi.org/10.1007/s00170-005-0032-y
  4. Jedrzejewski, J. and Kwasny, W., 2010, "Modeling of Angular Contact Ball Bearings and Axial Displacements for High-Speed Spindles," CIRP Annuals-Manufacturing Technology, Vol. 59, pp. 377-382. https://doi.org/10.1016/j.cirp.2010.03.026
  5. N. Akturk, "Dynamics of A Rigid Shaft Supported by Angular Contact Ball Bearing," Ph.D. Thesis, Imperial College of Science, Technology and Medicine, London, UK., 1993.

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