PARAMETER IDENTIFICATION OF A HYDRAULIC SERVO-VALVE TORQUE MOTOR WITH MAGNETIC FLUIDS BASED ON DYNAMIC CHARACTERISTICS
Due to the higher saturation magnetization and magnetoviscosity of magnetic fluids when exposed to a magnetic field, magnetic fluids are filled into the working gaps of a servo-valve torque motor to improve the dynamic performance of the torque motor in this paper. After the construction and working principle of a torque motor with magnetic fluids being introduced, the mathematical models are established. Simulation and experiments on the dynamic characteristics of the torque motor are carried out. Based on the experimental data and the mathematical model of the torque motor with magnetic fluids, the estimated values of the unknown parameters are obtained by a curve-fitting parameter identification method in the least-square sense.
servo-valve:torque motor:magnetic fluids:parameter identification 0 Introduction
Zhang Xingyuan Li Songjing Liu Jixiao
Department of Fluid Control and Automation,Harbin Institute of Technology,Harbin,150001,China;Colleg Department of Fluid Control and Automation,Harbin Institute of Technology,Harbin,150001,China
国际会议
哈尔滨
英文
959-962
2010-01-08（万方平台首次上网日期，不代表论文的发表时间）