Abstract： The aim of this study is to investigate a method of active vibration control based on input estimation by experimental method. The control method depends on parameters and external disturbance of the controlled system. In order to establish a dynamic equation of the system with parameters unknown, an algorithm of model identification is introduced to identify the parameters firstly. And then, system disturbance is described as discrete recursive expression by random walk model and introduced to a new state equation as an auxiliary state variable. According to the methods of Kalman filter and linear quadratic Gaussian (LQG), the control algorithm based on the new state equation is constructed. Therefore, the system objective function can be created according to the new state vectors including disturbance, state variables and control inputs. Finally, we could obtain the values of current control input by optimal algorithm. The method has been validated in a cantilever beam model and proved good effects. The results reveal the new method proposed were much better than the conventional LQG method.
邵敏强 陈卫东 陈 前. 基于输入估计方法的振动主动控制试验研究[J]. , 2013, 32(3): 172-177.
SHAO Min-qiang;CHEN Wei-dong;CHEN Qian. Experimental study of an active vibration control method based on input estimation. , 2013, 32(3): 172-177.
2013, Vol. 32 
