Hysteretic Property of Rare Earth Giant Magnetostrictive Actuator
Based on the hysteretic theory of the giant magnetostrictive material (RE-GMM) and the nonlinear characteristic of the giant magnetostrictive actuator (GMA), the composite nonlinear mathematic model was established with BoucWen hysteretic model, and the hysteresis properties and the hysteresis loop of the transducer were investigated. Then with Multi-scale method, the analytic solution of the response and the expression of the frequency-response properties, which the giant magnetostrictive actuator with hysteretic and geometric nonlinear vibration characteristic included, were achieved, and the t-x curve was obtained. Then, after the discussing about the different cases, the frequency-response curves were obtained with damp case and without damp case, and the affect of frequency-response characteristic with damp expressed by the dynamic excitation f, piezomagnetic coefficient d33 and magnetic conductivityμ33T to the curve of the frequency-response is discussed. Results indicated that the effect off, d33 and μ33T to the amplitude and nonlinear of the system was obvious. At the same time, the frequency-response curve had the phenomenon of double hopping.
rare earth giant magnetostrictive actuator (RE-GMA) magnetoelastic nonlinear frequency-response properties double hopping hysteretic nonlinear
Yuan Huiqun Li Dong Sun Huagang
Mechanical Engineering and Automation School, Northeastern University, Shenyang 110004, China
国际会议
海口
英文
236-239
2006-11-13（万方平台首次上网日期，不代表论文的发表时间）