低频大功率超磁致伸缩换能器的热磁设计研究

针对影响低频大功率超磁致伸缩(GMM)换能器性能的励磁线圈进行设计分析,对作为换能器主要热源的激励线圈设计了几种散热方案.各种方案的实验对比表明,采用适当的线圈设计参数和散热方案,能有效提高激励线圈的电磁转换效率,增加换能器的最大工作电流,从而充分利用大功率换能器中GMM的潜在性能空间.

Thermo-magnetic Design of Low Frequency High Power Giant Magnetostrictive Actuator

This paper analyzed the solenoid properties,which affected the property of high power giant magnetostrictive actuator and designed some heat dissipate schemes for the driving solenoid,which was the major heat resource of the actuator.Contrast of the experimental results from these schemes illustrates proper solenoid design parameters and heat dissipate schemes can improve the electric-magnetic transfer efficiency,and increases the maximum driving current,consequently can fully utilize the giant magnetostrictive property of high power actuator.