Abstract: The study of helicopter rotor braking process is a key point in trial production of aircraft.Due to the defects in the test system of traditional mechanical inertia,the simulation control system of rotor brake test is constructed on the basis of mathematical models of electrical simulation in rotor brake test system.By adopting DC motor as main power source,using small flywheel instead of the rotor and regulating the DC motor to simulate the speed of the rotor,the research of rotor brake process is done.The...