Transactions of the Korean Society for Noise and Vibration Engineering (한국소음진동공학회논문집)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Unbalance Response Analysis of Copper Die Casting High Speed Induction Motor

동 다이캐스팅 고속 유도전동기의 불평형 응답 해석

  • 홍도관 (한국전기연구원 전동력연구센터) ;
  • 정승욱 (동아대학교 대학원 기계공학과) ;
  • 우병철 (한국전기연구원 전동력연구센터) ;
  • 구대현 (한국전기연구원 전동력연구센터) ;
  • 안찬우 (동아대학교 기계공학과)
  • Received : 2012.03.16
  • Accepted : 2012.05.16
  • Published : 2012.07.20
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Abstract

This paper deals with a copper die casting induction motor which has several advantages of motor performance. The developed motor is used as spindle motor in machining center. The dynamic characteristic analysis of rotor is dealt with for precision machining. The critical speed of rotor considering rotation and gyroscopic effect should be above operating speed, 18,000 rpm, and have a 201 % sufficient separation margin. Also, the 3-D unbalance vibration response analysis is performed and enabled the prediction of the expected vibration amplitude by unbalance in high speed. The unbalance vibration responses of each position on the rotor are satisfied with allowable vibration displacement of API 611 standard according to balancing G grade(G 0.4, G 2.5, G 6.3). Copper die casting high speed induction motor is successfully developed and verified by experiment.

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References

  1. Lie, S. and Pietro, D., 1995, Copper Die-cast Rotor Efficiency Improvement and Economic Consideration, IEEE Transactions of Energy Conversion, Vol. 10, No. 3, pp. 419-424. https://doi.org/10.1109/60.464863
  2. Malinowski, McCormick, J. and Dunn, K., 2004, Advances in Construction Techniques of AC Induction Motors : Preparation for Super-premium Efficiency Levels, IEEE Transactions of Industry Applications, Vol. 40, No. 6, pp. 1665-1670. https://doi.org/10.1109/TIA.2004.836300
  3. Jung, S. W., Hong, D. K., Woo, B. C., Koo, D. H. and Ahn, C. W., 2011, Rotordynamics of Induction Motor for Copper Die Casting Control, Proceedings of the KSNVE Annual Autumn Conference, pp. 157-158.
  4. Hong, D. K., Woo, B. C. and Koo, D. H., 2010, Rotordynamics and Unbalance Response Analysis 200 kW, 15 krpm, 3 Phase Induction Motor, PRZEGLAD ELEKTROTECHNICZNY(Electrical Review), R. 86 NR 5, pp. 129-132.
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  6. API Standard 611, 2008, General-purpose Steam Turbines for Petroleum, Chemical, and Gas Industry Services, Fifth Edition, American Petroleum Institute, Washington, D.C..
  7. Ganatra, N. and Ratel, R. C., 2011, Witness Testing of API 610 Centrifugal Pumps and API 611 Steam Turbines, Proc. of the 27th International Pump Users Symposium, pp. 71-79.

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