Research of Novel Hybrid-Electromagnetic Actuator with Adjustable Rigidity and Damping
A novel hybrid-electromagnetic actuator with the permanent magnet is designed, by which the operating component can realize the to-and-fro driving movement by changing the current direction of its control coil and it is more convenient to use for active vibration control. The electromagnetic force of the actuator is theoretically calculated by equivalent magnetic circuit and by the finite element respectively. Finally the characteristic of its rigidity and damping in an active vibration isolation system are analyzed, and it is indicated that they are not only related to its structure parameters，but also to the parameter of controller.
Long Chen, Yongkang Zhang, Aixing Feng, Zhenying Xu, Boquan Li and Han Shen
W. G. Wu and L. Z. Ma, "Research of Novel Hybrid-Electromagnetic Actuator with Adjustable Rigidity and Damping", Applied Mechanics and Materials, Vol. 43, pp. 448-452, 2011