Journal of Northeastern University Natural Science ›› 2019, Vol. 40 ›› Issue (12): 1726-1731.DOI: 10.12068/j.issn.1005-3026.2019.12.011

• Mechanical Engineering • Previous Articles     Next Articles

Multi-frequency Controlled Synchronization of a Vibrating System with Two-Motor Drives Rotating in Opposite Directions

LIU Yun-shan1,2, JIA Lei1, WEN Bang-chun1   

  1. 1.School of Mechanical Engineering & Automation, Northeastern University, Shenyang 110819, China; 2. Department of Mechanical Engineering, Guidaojiaotong Polytechnic Institute, Shenyang 110023, China.
  • Received:2019-03-29 Revised:2019-03-29 Online:2019-12-15 Published:2019-12-12
  • Contact: LIU Yun-shan
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Abstract: Given that the base frequency synchronization is not conducive to the diversity of material screening, the multi-frequency self-synchronization is difficult to be realized and only integer times frequency synchronization motion can be achieved, multi-frequency controlled synchronization of a vibrating system with two eccentrics driven by inductor motors was proposed. Firstly, the electromechanical coupling dynamic model of the vibration system was established, based on which the response equation of the vibration system was derived by using the small parameter average method. Meanwhile, the fuzzy PID control method was introduced based on the master-slave control strategy, which not only realized the multi-frequency control synchronous motion, but also realized the zero-phase difference multi-frequency synchronous motion of the minimum common multiple period. Finally, the accuracy and effectiveness of the theory was proved by Matlab/Simulink simulation.

Key words: controlled synchronization, multi-frequency, vibrating system, master-slave control, fuzzy PID

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