The Design of Giant Magnetostrictive Flow Valve and its COMSOL Simulation
By combining magnetostrictive actuator with flow valve directly, the flow was precisely controlled due to magnetic materials’ properties of fast response (less than 1μs)and large magnetostrictive strain (up to 1500ppm). The structure was designed based on this theory, and the flow - displacement model of valve was established by analyzing the size of the valve opening in different incentive current. The flow field was analyzed through multi-physics analysis software COMSOL. Simulation results showed that, the continuous adjustment and precision control were realized in a certain range of flow in the valve. Therefore, it could not only adjust the flow in micro amount directly, but also can be a pilot valve for high frequency precision large flow valve.
Guojun Zhang and Jessica Xu
P. Chen et al., "The Design of Giant Magnetostrictive Flow Valve and its COMSOL Simulation", Advanced Materials Research, Vols. 160-162, pp. 1146-1150, 2011