Research of Transfer Function on Ship Fin Stabilizer Servo System

This paper researches on the electronic-hydraulic control system of ship fin stabilizer with the input electrical current signal to servo valve(which is corresponding to the displacement of the servo valve's core),and the output signal of rotation angel of fin shaft. The calculation bases on both throttle control system and volume control system, which involve almost all the control types of ship fin stabilizer electronic-hydraulic control systems. The transfer functions of both these two types of control systems are figured out at the end of this paper.