Magnet Circuit Optimization Design of Giant Magnetostrictive Actuator
To optimize the electromagnetic performance of giant magnetostrictive actuator(GMA), equivalent magnet circuit equation was proposed, and effects of magnetic circuit components ,gaps magnetic permeability and the evenness of driving magnetic field on the magnetic field characteristics were analyzed based on the equation. the driving coils structure was designed, and its shape was optimized based on G-factor; with the electromagnetic field analysis function available in ANSYS program, several different magnetic circuits and their field distribution are analyzed. As a result, a kind of magnetic circuit structure with more even magnetic field is found out. The actuator prototype was made and tested, and result shows the optimal method proposed in the paper can greatly improve performance of GMA.
Giant Magnetostrictive Actuator Magnetic circuit Driving coil G-factor Evenness of magnetic field
Liu Dehui Lu Quanguo Zhen yuyun
School of Mechanical Engineering, Nanchang Institute of Technology, Nanchang, 330099,China Institute of Intelligent Manufacturing, Wuhan University of Technology, Wuhan ,430063,China
国际会议
昆明
英文
688-692
2008-11-22（万方平台首次上网日期，不代表论文的发表时间）