Characteristics Analysis of Giant Magnetostrictive Actuator Applied in Jet-Pipe Servovalve

Yue Song Li; Yu Chuan Zhu

doi:10.4028/www.scientific.net/AMR.712-715.2192

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 712-715Characteristics Analysis of Giant Magnetostrictive...

Characteristics Analysis of Giant Magnetostrictive Actuator Applied in Jet-Pipe Servovalve

Abstract:

In order to improve the performance of jet-pipe servovalve, a novel pilot stage for jet-pipe servovalve driven by giant magnetostrictive actuator is presented, and its working principle is given. On the basis of Jiles-Atherton’s theory of magnetism, the dynamic nonlinear model of giant magnetostrictive actuator is deduced to analyze the characteristics. The simulation results shows the peak time of GMA is less than 0.5ms at the driving current of 1.5A, and the bandwidth can be reached up to 900Hz, but the static performance is worse than the torque motor applied in conventional jet-pipe servovalve.

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Periodical:

Advanced Materials Research (Volumes 712-715)

Pages:

2192-2195

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.712-715.2192

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Online since:

June 2013

Authors:

Yue Song Li, Yu Chuan Zhu

Keywords:

Characteristic Analysis, Giant Magnetostrictive Actuator, Jet-Pipe Servovalve

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References

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