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

다국어 초록 (Multilingual Abstract)

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.

참고문헌 (Reference)

1 장세명, "보조동력장치 연료 공급용 서보밸브 토크모터의 기초 수치모사 연구" 유공압시스템학회 6 (6): 1-6, 2009

2 김성수, "보조 동력 장치 연료 공급용 서보밸브의 유동 특성 해석" 유공압시스템학회 5 (5): 10-16, 2008

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5 Holiday D., "Fundamentals of Physics" John Wiley & Sons 1988

6 Lonngren K.E., "Fundamentals of Electromagnetics with MAT-LAB. 2nd edition" 2007

7 정헌술, "APU 연료시스템 서보밸브 설계/해석 기술개발, 연차보고서" 한국항공우주연구원 2008

8 정헌술, "APU 연료시스템 서보밸브 설계/해석 기술 개발" 한국항공우주연구원 2007