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보조동력장치 연료 공급용 서보밸브 토크모터의 기초 수치모사 연구
장세명,정헌술,양인영,이원중,장강원 사단법인 유공압건설기계학회 2009 드라이브·컨트롤 Vol.6 No.2
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.
보조 동력 장치 연료 공급용 서보밸브의 토크모터 전자기 해석
장세명,장강원,정헌술,이동호,Chang, Se-Myong,Jang, Gang-Won,Jeong, Heon-Sul,Rhee, Dong-Ho 항공우주시스템공학회 2007 항공우주시스템공학회지 Vol.1 No.3
As a main part of an utility helicopter, the APU(Auxiliary Power Unit) has a solenoid valve system operated with a torque motor, which controls the flow rate in the fuel supply system. In this paper, we solved the Maxwell potential equations to analyze the electromagnetic force in the torque motor, and some additional analytic methods are used to compute the quantity of torque produced by the torque motor for the given circuit current. For the convenience, small displacement is assumed, and only magneto-static problem is considered for the two-dimensional cross section. The result will be compared with the three-dimensional analysis that will be studied in the near future.