基于径向励磁和永磁-电磁联合驱动的主动平衡执行器  

Electromagnetic active balancing actuator based on the radial excitation and permanent magnet-electromagnetism combined driving method

作　　者：潘鑫[1,2] 彭瑞轩 何啸天 吴海琦 葛德宏[2] 江志农 PAN Xin;PENG Ruixuan;HE Xiaotian;WU Haiqi;GE Dehong;JIANG Zhinong(Key Laboratory of Engine Health Monitoring-Control and Networking of Ministry of Education,Beijing University of Chemical Technology,Beijing 100029,China;Beijing Key Laboratory of Health Monitoring and Self-recovery for High-end Mechanical Equipment,Beijing University of Chemical Technology,Beijing 100029,China)

机构地区：[1]北京化工大学发动机健康监控及网络化教育部重点实验室,北京100029 [2]北京化工大学高端机械装备健康监控与自愈化北京市重点实验室,北京100029

出　　处：《振动与冲击》2021年第2期23-28,共6页Journal of Vibration and Shock

基　　金：国家自然科学基金项目(51875031);北京市优秀人才青年骨干个人项目(2017000020124G018)。

摘　　要：在线主动平衡系统因可实时抑制旋转设备运行过程中的不平衡振动,在高端机床和航空发动机等高端装备领域具有重要应用价值。平衡执行器作为主动平衡系统的终端执行机构,其性能参数决定了平衡系统的整体指标。对已有电磁滑环式平衡执行器的轴向励磁方法进行了改进研究,提出了一种基于径向励磁和永磁-电磁联合驱动方法的新型执行器结构,通过建立有限元模型定量分析了执行器的关键性能参数,并最终通过试验验证了上述结构的可行性和有效性。结果表明,径向励磁结构在整周范围内均可驱动配重盘完成自锁和步进动作,结构设计方案可行,且利用永磁-电磁联合驱动可将驱动电压有效降低12.5%,为该类执行器的工业应用提供了技术支撑。An active balancing system can suppress the unbalance vibration of rotating equipments in real time,and has an important application value in the high-end equipment field,such as high-end machine tools and aircraft engines.As a terminal actuator of active balancing system,the performance parameters of the balancing actuator determine the overall index of the balancing system.In the paper,the axial excitation method for the existing electromagnetic-ring balancing actuator was improved,a novel actuator structure based on the radial excitation method was proposed.The key performance parameters of the actuator were quantitatively analyzed by establishing a finite element model,and the feasibility and effectiveness of the structure were verified by experiments.The results show that the radial excitation structure can drive the counterweight disc to complete self-locking and step-by-step action in a whole cycle.The structural design is feasible,and the drive voltage can be effectively reduced by 12.5%through the permanent magnet-electromagnetism combined driving method,which provides a technical support for the industrial application.

关 键 词：不平衡振动抑制 主动平衡 平衡执行器 径向励磁 有限元分析 

分 类 号：TH113[机械工程—机械设计及理论] TB535[理学—物理]