동 다이캐스팅 고속 유도전동기의 불평형 응답 해석

다국어 초록 (Multilingual 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.

참고문헌 (Reference)

1 Ganatra, N., "Witness Testing of API 610 Centrifugal Pumps and API 611 Steam Turbines" 71-79, 2011

2 Jung, S. W., "Rotordynamics of Induction Motor for Copper Die Casting Control" 157-158, 2011

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4 "Mechanical vibration - Balance Quality Requirements of Rigid Rotors - Part 1 : Determination of Permissible Residual Unbalance"

5 "General-purpose Steam Turbines for Petroleum, Chemical, and Gas Industry Services, Fifth Edition, American Petroleum Institute, Washington, D.C."

6 Lie, S., "Copper Die-cast Rotor Efficiency Improvement and Economic Consideration" 10 (10): 419-424, 1995

7 Malinowski, McCormick, J., "Advances in Construction Techniques of ACInduction Motors : Preparation for Super-premiumEfficiency Levels" 40 (40): 1665-1670, 2004