Dynamics Analysis of a Rolling Rotor Compressor Considering the Electromagnetic Force

Authors

  • Ao Zhang
  • Hongyuan Sun

DOI:

https://doi.org/10.54097/jceim.v10i3.8708

Keywords:

Rolling rotor compressor, Electromagnetic force, Dynamic characteristics, Coupling effect

Abstract

Rolling rotor compressor is a commonly used compressor in air conditioning systems, and studying its internal dynamic characteristics plays an important role in the vibration and noise of air conditioning systems. Due to the integration of the motor rotor and shaft inside the compressor, the influence of electromagnetic force needs to be considered when analyzing the dynamics of the compressor. This paper studies the rotor dynamics characteristics of a rolling rotor compressor, considering not only the bearing force and gas force inside the cylinder, but also the electromagnetic force of the motor rotor. Firstly, the gas force, electromagnetic force, and bearing force on the compressor shaft are analyzed; Secondly, a two degree of freedom rotor bearing dynamic model of the compressor shaft is established, and the dynamic characteristics of the shaft are obtained by solving the model though the Runge-Kutta method; Finally, the vibration characteristics of the compressor shaft are analyzed in both the time and frequency domains. The results indicate that the influence of electromagnetic force cannot be ignored, and the coupling effect between electromagnetic force and bearing force can be seen.

References

Hu Di, Li Hongqi. Status of technology and development trend of rolling rotor compressor[J]. Refrigeration and Air Conditioning, 2017,17(2): 73-79.

Kim H. J., Lancey T. W. Numerical study on the lubrication oil distribution in a refrigeration rotary compressor[J]. International Journal of Refrigeration-Revue Internationale Du Froid, 2003, 26(7): 800-808.

Tan K. M., Ooi K. T. Journal bearings design for a novel revolving vane compressor[J]. International Journal of Refrigeration-Revue Internationale Du Froid, 2011,34(1): 94-104.

Mi J., Meng Y. Numerical analyses of hydrodynamic lubrication and dynamics of the rolling piston and crankshaft in a rotary compressor[J]. Tribology Transactions, 2014,57(6): 1136-1147.

Zhang H., Wu J., Xie F., et al. Dynamic behaviors of the crankshafts in single-cylinder and twin-cylinder rotary compressors[J]. International Journal of Refrigeration-Revue Internationale Du Froid, 2014,47: 36-45.

Mi J., Meng Y. THD analysis of Rolling Piston and Journal Bearings in Rotary Compressors [J]. Tribology Transactions, 2016, 59(2): 195-207.

Zhang A., Bai Y., Yang B., et al. Analysis of Nonlinear Vibration in Permanent Magnet Synchronous Motors under Unbalanced Magnetic Pull [J]. Applied Sciences-Basel, 2018, 8(1): 113.

Xiang C., Liu F., Liu H., et al. Nonlinear dynamic behaviors of permanent magnet synchronous motors in electric vehicles caused by unbalanced magnetic pull[J]. Journal of Sound and Vibration, 2016,371: 277-294.

Lin F., Zuo S., Deng W., et al. Modeling and Analysis of Electromagnetic Force, Vibration, and Noise in Permanent-Magnet Synchronous Motor Considering Current Harmonics [J]. IEEE Transactions on Industrial Electronics, 2016,63(12): 7455-7466.

Wu S., Zuo S., Wu X., et al. Vibroacoustic Prediction and Mechanism Analysis of Claw Pole Alternators[J]. IEEE Transactions on Industrial Electronics, 2017,64(6): 4463-4473.

Ailable: http://www.halcyon.com/pub/journals/21ps03-vidmar.

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Published

24-05-2023

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Section

Articles

How to Cite

Zhang, A., & Sun, H. (2023). Dynamics Analysis of a Rolling Rotor Compressor Considering the Electromagnetic Force. Journal of Computing and Electronic Information Management, 10(3), 91-94. https://doi.org/10.54097/jceim.v10i3.8708