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    Optimization of an intrinsically safe solenoid valve and the static and dynamic characteristics

    Liao, Y, Lian, Z, Yuan, H, Feng, J and Cui, H (2019) Optimization of an intrinsically safe solenoid valve and the static and dynamic characteristics. International Journal of Applied Electromagnetics and Mechanics, 61 (1). pp. 111-122. ISSN 1383-5416

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    © 2019 IOS Press and the authors. All rights reserved. The solenoid valve used on the hydraulic roof support in the coal mine is an intrinsically safe solenoid. It requires the solenoid valve to achieve large electromagnetic force at low current. The load can not be driven if the current is too low, while a large temperature rise and energy loss would occur in the form of heat if the current is too high. In order to solve this contradictory problem, the load force of the solenoid valve was analyzed first. Then the ANSYS models of the solenoid were established to carry out the simulation jobs. The effects of the three parameters, the sleeve length, the seat length and the boss height, on the electromagnetic forces and magnetic fields were researched so as to optimize the three parameters. The static and dynamic characteristics of the optimized solenoid valve were also studied. An experimental setup was established to verify the simulation results finally. Results show that the simulation values are in good agreement with the experimental values. The peak value of starting current and holding current is small and the solenoid responses rapidly. This study proves the accuracy and reliability of the simulation models and the methods. It also provides valuable references for the design and optimization of the intrinsically safe solenoid valve.

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