Abstract:The centrifugal actuator has some advantages, including large frequency bandwidth, large output, simple structure, compact size, light weight, less power and so on, so it has more advantages. However, the ACSR technology based on the centrifugal actuator is seldom applied in helicopters in domestic, therefore, it is necessary to do research on the active control algorithm about the system based on the centrifugal actuator. A new type of centrifugal actuator with oneway output force was designed,based on the theory that the direction of the centrifugal force which was generated by the same two eccentric mass blocks under the condition of reverse rotation with the same speed was vertical. And the amplitude, phase and frequency of the output force generated by the centrifugal actuator can be controlled by adjusting the angular acceleration of the servo motors. Finally, simulations were conducted using LabVIEW. The results show that in the process of active control, according to the input of the target signal, the change of the angular acceleration of the servo motors made the actuator′s output signal was controlled very well, so that, the final output signal reached the target.