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Rotordynamic analysis and experimental validation of a high speed induction motor made by copper die casting process

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Abstract

A copper die casting induction motor can obtain an energy saving effect of about 2–3% compared to previous aluminum die casing induction motors. In addition, copper die casting motors can reduce the size of motors and reduce material costs. The critical speed and unbalance response of high speed machines need to be verified by rotordynamic analysis for dynamic stability of the rotors. The critical speed analysis, harmonic analysis and transient analysis by unbalance are performed for dynamic stability. The unbalance analysis results are compared with the experiment considering allowable vibration displacement (API 611) and balancing grade (ISO 1940-1). This paper dealt with the design, analysis and experimental validation of a high speed induction motor. The dynamic stability of the prototype is verified successfully, and two experimental methods by ISO 10816-3 are suitable and reliable for the allowable vibration evaluation of rotating machine.

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Authors and Affiliations

  1. Electric Motor Research Center, Korea Electrotechnology Research Institute, Changwon, 641-120, Korea

    Do-Kwan Hong, Jae-Hak Choi, Byung-Chul Woo & Dae-Hyun Koo

  2. Department of Mechanical Engineering, University of Dong-A, Seoul, Korea

    Gyeong-Bae Kim & Chan-Woo Ahn

Authors
  1. Do-Kwan Hong
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  2. Jae-Hak Choi
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  3. Byung-Chul Woo
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  4. Dae-Hyun Koo
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  5. Gyeong-Bae Kim
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  6. Chan-Woo Ahn
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Corresponding author

Correspondence to Chan-Woo Ahn.

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Recommended by Guest Editor Haedo Jeong

Do Kwan Hong received the B. S., M. S. and Ph.D. degrees in mechanical engineering from Dong-A University, Busan, South Korea, in 1998, 2000 and 2004, respectively. Since 2004, He has been with Electric Motor Research Center, Korea Electrotechnology Research Institute, Changwon, South Korea, as a Senior Researcher. His research interests include the design, analysis and performance evaluation of ultra-high speed machine, motor-generator for micro gas turbine generator.

Chan Woo Ahn is a professor in the Department of Mechanical Engineering at Dong-A University. He received Ph. D. degree from Han-Yang University in 1988. He is teaching Dynamics, Kinematics of Machinery and Mechanical vibrations in the Department of Mechanical Engineering at Dong-A University. His research interests are vibration control, noise and vibration of automotive systems.

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Hong, DK., Choi, JH., Woo, BC. et al. Rotordynamic analysis and experimental validation of a high speed induction motor made by copper die casting process. J Mech Sci Technol 27, 3035–3041 (2013). https://doi.org/10.1007/s12206-013-0822-3

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  • DOI: https://doi.org/10.1007/s12206-013-0822-3

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