Research on temperature controlling for GMA based on direct liquid cooling

LI Jiaqi1,2, WU Yijie1,2, ZHANG Lei1,2, Wang Bin1,2
(1. Institute of Modern Manufacture Engineering, Zhejiang University, Hangzhou 310027, China;
2. State Key Laboratory of Fluid Power Transmission and Control, Zhejiang University, Hangzhou 310027, China)

Abstract: In order to provide a stable working temperature for giant magnetostrictive actuator(GMA), thereby ensuring its highpreciseoutput, aiming at improving the thermal efficiency of traditional temperature controlling method, a novel high thermal efficiency temperature controlling method as well as a new chuckstyle thermal structure, were proposed for flexure type GMA on the basis of direct liquid cooling principle. Simulation results show that the novel direct liquid cooling method with multilayer oil tunnels could provide a temperature disturbance range of ±0.02 ℃ for giant magnetostrictive material(GMM) compared with previous results of ±0.4 ℃~±0.5 ℃ by the traditional method, and the novel temperature controlling method and thermal structure will shed light on further application research and development utilizing GMM.
Key words: giant magnetostrictive material(GMM); giant magnetostrictive actuator(GMA); temperature control; chuck style