用于旋翼桨毂主动式吸振器的控制算法

介绍了一种安装在旋翼桨毂上的主动式吸振器。针对该吸振器中偏心质量块的运动特点,选用直流电机作为驱动器,建立了主动式桨毂吸振器的仿真模型,对其原理进行了研究。以输出力变化幅值及电机需用功率为目标,在吸振器输出力状态改变的情况下,对其过渡阶段角速度进行了优化。在此基础上对一个主动式桨毂吸振器的输出力过渡过程进行了仿真分析,结果表明该控制算法可在较短时间内完成过渡过程,并且最终能够达到减小桨毂振动载荷的要求。

Control Algorithm Used for Rotor Hub Mounted Active Vibration Absorber

An active vibration absorber mounted on rotor hub is introduced. Based on the movement characteristic of eccentric masses of the vibration absorber, the DC motor is chosen as driver, the simulation model of active vibration absorber is established, and its operating principle is studied. When the output force of vibration absorber is changing, the angular velocity is optimized in the transitional stage, thus guaranteeing the small change of output force and required power. The simulation of output force transitional stage of an active vibration absorber is carried out. The results show that the control algorithm can complete the transitional stage within a short time, achieving the aim of decreasing the load of rotor hub ultimately.