馈能式电磁作动器馈能与阻尼特性研究

Research on the Regenerating and Damping Characteristics of Energy-regenerative Electromagnetic Actuator

为探究基于"旋转电机+齿轮齿条"结构的馈能式电磁作动器的工作特性,在分析其工作原理的基础上设计并研制了一款该型作动器,阐述了其结构设计与参数计算流程,理论分析了馈能式电磁作动器的馈能特性和阻尼特性,并进行了台架试验。结果表明:馈能式电磁作动器的反馈电压和电磁阻尼系数主要与激振速度和外接负载电阻的大小有关。这为后续研究中对馈能式电磁作动器的阻尼和反馈电压的精确控制奠定了基础。

In order to explore the work performance of the energy-regenerative electromagnetic actuator based on the structure of rotary motor and rack and pinion,it is designed and developed on the basis of analyzing the working principle. Then,the procedure of structure design and parameters calculation is presented,the energy-regenerative and damping characteristics are theoretically analyzed. Finally,a performance test is carried out to verify it. The result indicates that the feedback voltage and the electromagnetic damping coefficient of the energy-regenerative electromagnetic actuator is mainly related to the exciting speed and the size of the external load resistance,which lays a solid foundation for the accurate control of the actuator＇s damping force and feedback voltage in the subsequent research.