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Nonlinear dynamics characteristics of motor rotor system in shearer cutting section considering electromechanically coupled effect

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Abstract

To reveal the system vibration mechanism, comprehensive consideration of the motor rotor vibration form and the electromechanical coupling effect, a torsional vibration coupling model of the rotor system under electromagnetic effects and terminal load disturbance is established based on the motor theory and Maxwell equations. According to the Melnikov method, the balance point and stability region of the undisturbed Hamilton system are analyzed, and the influence of the system damping and terminal load on the torsional characteristics of the PMSM rotor system is clarified. The specific path and mechanism of the PMSM rotor system instability of the shearer cutting section are revealed. The load excitation f and the system damping u are selected as single control variables, respectively, to analyze the movement state of the system when different variables change. This research can provide a reference for system parameter optimization and selection of common working conditions.

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Acknowledgments

This work is supported by the National Natural Science Foundation of China (Grant No. 52005232,51775543), National Natural Science Foundation of Jiangsu Province, China (Grant No.BK20201024), the Natural Science Foundation of Jiangsu Normal University, China (Grant No. 19XSRX016).

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Authors and Affiliations

  1. School of Mechatronic Engineering, Jiangsu Normal University, Xuzhou, 221116, China

    Lianchao Sheng & Guo Ye

  2. School of Mechatronic Engineering, China University of Mining and Technology, Xuzhou, 221116, China

    Wei Li & Song Jiang

Authors
  1. Lianchao Sheng
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  2. Wei Li
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  3. Guo Ye
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  4. Song Jiang
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Corresponding author

Correspondence to Wei Li.

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Conflicts of Interest

The authors declare no conflict of interest.

Lianchao Sheng was born in 1990. He received the B.E. and Ph.D. degrees from the School of Mechatronic Engineering, China University of Mining and Technology, Xuzhou, China, in 2014 and 2019, respectively. Since 2019, he became a lecturer in the School of Mechanical and Electrical Engineering, Jiangsu Normal University. His research interests include optimization design and nonlinear dynamics analysis and control of shearer cutting transmission system.

Wei Li was born in 1964. He received the M.E. and Ph.D. degrees from the China University of Mining and Technology, Xuzhou, China, in 1989 and 2004, respectively. He is now a Professor at School of Mechatronic Engineering with the China University of Mining and Technology. His research interests include structure shearer structure design, electromechanical coupling dynamics, coordinated positioning of moving targets, etc.

Guo Ye was born in 1984. He received the B.E. and Ph.D. degrees from the School of Mechatronic Engineering, China University of Mining and Technology, Xuzhou, China, in 2006 and 2011, respectively. Now he works at Jiangsu Normal University as a lecturer. His current research interests include electromechanical dynamics, robot optimization design and control theory.

Song Jiang was born in 1995. He received the B.E. degree from the School of Mechatronic Engineering, China University of Mining and Technology, Xuzhou, China, in 2017. He is now a doctoral student in the School of Mechatronic Engineering. His research interests include nonlinear dynamics and reliability studies of shearer.

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Sheng, L., Li, W., Ye, G. et al. Nonlinear dynamics characteristics of motor rotor system in shearer cutting section considering electromechanically coupled effect. J Mech Sci Technol 35, 3281–3291 (2021). https://doi.org/10.1007/s12206-021-0702-1

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  • DOI: https://doi.org/10.1007/s12206-021-0702-1

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