유공압시스템학회논문집 (Transactions of The Korea Fluid Power Systems Society)
- 제6권2호
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- Pages.1-6
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- 2009
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- 1738-3315(pISSN)
보조동력장치 연료 공급용 서보밸브 토크모터의 기초 수치모사 연구
Priliminary Numerical Simulation of the Torque Motor for a Servo Valve in the Fuel Supply System of APU
초록
The APU(Auxiliary Power Unit) needs a set of complex pipeline for the fuel supply system where some of the main valves controlling the flow rate consist of the servo valve worked with a torque motor. The input electric current produces an induced magnetic field almost perpendicular to the background magnetic filed generated by fixed permanent magnets. The induced torque deforms the tubular bushing, and directly rotates an armature, which can open and close the valve. In this study, we start from a basic analytic model using a simple electro-magneto-statics, and expand our model to the three-dimensional one computationally applying a commercial code named COMSOL. The result is compared with each other, and reasonable numerical data are obtained for the dynamic behavior and multi-physics system.