The Transactions of the Korean Institute of Electrical Engineers B (대한전기학회논문지:전기기기및에너지변환시스템부문B)

The Korean Institute of Electrical Engineers (대한전기학회)
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Analysis of Vibration due to Magnetic Exciting Force in the Brushless DC Motor

브러시리스 직류 전동기의 자기 가진력에 의한 진동 해석

  • Published : 2001.01.01
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Abstract

In this paper, the general research on the analysis of the vibration due to magnetic exciting force in the small brushless DC(BLDC) motor, which is used in the Digital Versatile Disk(DVD) ROM driving system, is performed. The first part of the study is the analysis of the magnetic exciting force in the air gap region. As a verification of the exciting force by numerical analysis, the magnetic exciting force distribution in the air gap region is computed by using Reluctance Network Method(RNM). In addition, the effect of the eccentricity on the magnetic exciting force is discussed. The other part of the research is the structural analysis of the rotor structure of the BLDC motor. The matural mode analysis of the rotor structure is performed, and the vibration response due to magnetic exciting force is found. As a result of the procedures, the basic estimation of the effect of the magnetic exciting force on the vibration of BLDC motor is suggested.

Keywords

References

  1. S.J. Yang, Low Noise Electrical Machines, Clarendon Press, Oxford, 1981
  2. P.L. Timar et al., Noise and Vibration of Electrical Machines, 1989, Elsevier
  3. R. Belmans et al., Vibrations and Audible Noise in Alternationg Current Machines, 1988, Kluwer Academic Publishers
  4. Herbert H. Woodson, James R. Melcher, Electromechanical Dynamics, Part 2: Fields, Forces, and Motion, Robert E. Krieger Publishing Company, 1985, Chap. 8, pp. 445-447
  5. R.S. Rahman, D.K. Lieu, The Origin of Permanent Magnet Induced Vibration in Electric Machines, Trans. of the ASME, Vol. 113, Ocober 1991, pp. 476-481
  6. Gunhee Jang, Analysis of Magnetic Force and Torque in Brushless DC Motor, 1993
  7. 이장무, 모드해석의 이론과 응용, 제 2판 수정본, 비매품, 1998
  8. 임달호, 홍정표, '3차원 등가자기회로망법에 의한 영구자석모터의 자계해석', 대한 전기학회논문지, 제43권, 9호, pp. 1432-1439, 1994. 9
  9. J. Perho, E. Ritchie, Analysis of a Permanent Magnet Machine Using Reluctance Network Method, International Conference on Electrical Machine, ICEM96 Vigo, September 1996, Vol.1, pp. 44-47
  10. Vlado Ostovic, Dynamics of Saturated Electric Machines, Springer Verlag, 1989,chap2,6-29
  11. Chong-Won Lee, Vibration Analysis of Rotors, 1993. Kluwer Academic Publishers
  12. L. Meirovich, Elements of Vibration Analysis, McGraw-Hill, 1986, chap 4
  13. C. Couturier, B.Cassoret, P. Witczak, J.F. Brudny, A Contribution to The Study of Induction Machine Stator Resonance Frequencies, International Conference on Electrical Machine, ICEM 98, Vol. 1, pp. 485-489, September 1998
  14. ABAQUS/Standard Users Manual Version 5.7, Hibbitt, Karlsson & Sorensen,Inc.,1997