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


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.


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


Supported by : 한국에너지기술평가원(KETEP)


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  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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