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Optimal Design of Novel Electromagnetic-Ring Active Balancing Actuator with Radial Excitation

Chinese Journal of Mechanical Engineering 2021年第1期34卷 142-155页

作者： Xin Pan Xiaotian He Haiqi Wu Chuanlong Ju Zhinong Jiang Jinji Gao Beijing Key Laboratory of Health Monitoring and Self-recovery for High-end Mechanical Equipment Beijing University of Chemical TechnologyBeijing 100029China Key Laboratory of Engine Health Monitoring-control and Networking(Ministry of Education) Beijing University of Chemical TechnologyBeijing 100029China

imbalance vibration is a typical failure mode of rotational machines and has significant negative effects on the efficiency,accuracy,and service life of *** automatically reduce the imbalance vibration during the operational process,different types of active balancing actuators have been designed and widely applied in actual ***,the existing electromagnetic-ring active balancing actuator is designed based on an axial excitation structure which can cause structural instability and has low electromagnetic driving *** this paper,a novel radial excitation structure and the working principle of an electromagnetic-ring active balancing actuator with a combined driving strategy are presented in ***,based on a finite element model,the performance parameters of the actuator are analyzed,and reasonable design parameters are ***-locking torque measurements and comparative static and dynamic experiments are performed to validate the self-locking torque and driving efficiency of the *** results indicate that this novel active balancing actuator has sufficient self-locking torque,achieves normal step rotation at 2000 r/min,and reduces the driving voltage by 12.5%.The proposed novel balancing actuator using radial excitation and a combination of permanent magnets and soft-iron blocks has improved electromagnetic efficiency and a more stable and compact structure.

关键词： Rotational machines imbalance vibration control Active balancing Balancing actuator Finite element analysis

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