Design of a Giant Magnetostrictive Actuator and Research on the Effect of Water Cooling System

Rong Ge Yan; Li Hua Zhu; Xiao Xing Dong

doi:10.4028/www.scientific.net/AMR.889-890.893

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 889-890Design of a Giant Magnetostrictive Actuator and...

Design of a Giant Magnetostrictive Actuator and Research on the Effect of Water Cooling System

Abstract:

Actuators made of giant magnetostrictive materials (GMM) have good application prospect in the precise driving. Because characteristics of GMM are very sensitive to temperature, the coil thermal effect will cause phenomenon of heat expansion and cold contraction in GMM, which affects the precise displacement output of the actuator. Coil skeleton and water cooling system are installed between the coil and the GMM rod in this design. The effect of water cooling system on the coil temperature rise is experimental studied. It is found that water cooling system can effectively reduce the influence of the coil temperature rise on displacement output of the GMM rod. Water cooling system has greatly improved the coil operating temperature when current is low, while cooling effect is not big for the larger current. That is because the coil heating is strong and the water can not immediately take away the heat. But coil temperature rise is still limited in allowable range. Thus, experiment results show that water cooling system can effectively ensure output precision of the GMM actuator.

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Periodical:

Advanced Materials Research (Volumes 889-890)

Pages:

893-896

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.889-890.893

Citation:

Cite this paper

Online since:

February 2014

Authors:

Rong Ge Yan, Li Hua Zhu*, Xiao Xing Dong

Keywords:

Actuator, Giant Magnetostrictive Materials (GMM), Magnetic Structure, Temperature Characteristics, Water Cooling System

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* - Corresponding Author

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