Differential Drive Servo Valve Based on MSMA

Abstract:

Aimed at the contradiction between high frequency response and large flow of servo valve, the paper puts forward a 2D servo valve with differential drive based on magnetic controlled shape memory alloy(MSMA). To realize large flow control, the valve-spool is set of flow increasing orifice to match the flow increasing window on the valve-sleeve. The paper briefly introduces the structural features of the 2D servo valve and the working principle of the differential drive. It also has a simulation analysis on the magnetic field of the drive and the low field of the valve. Simulation results show that, the flow of the valve is linear with the input current.

• Periodical: Applied Mechanics and Materials (Volumes 271-272)
• Pages: 858-862
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.271-272.858
• Online since: December 2012
• Authors: Chao Yu, Kui Sheng Chen, Shu Guang Fu
• Keywords: 2D Servo-Valve, Differential Drive, MSMA, Simulation

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