Active Control Of Rotor Vibration Based On Gray System Theory

Active control of rotor dynamic system is an important application of active control technology to field of rotor dynamic system. Gray control theory is a new control theory, which has strong adaptability. This paper is mainly focused on the application of gray control theory to active control of rotor dynamic system. This paper analyze the characters of rotor system, the author points a rotor system can be regarded as a gray system. And gray control of the rotor system is proved to be workable and reasonable. According to the gray-forecast control theory, the gray-related control theory, the control optimization theory, gray system theory and nonlinear GM former, the paper bring forward and design three kinds of gray control means(the gray forecast optimization control, the gray-related forecast optimization control , the gray Verhuslt forecast optimization control).Three kinds of gray control means are used to the same rotor dynamic system(singleton disk rotor bearing system). The outcome of the emulating shows that the control schemes are feasible, and the control results are satisfactory. Comparing and analyzing the three outcomes, outcomes show the best is the gray-related forecast optimization control, the worst is the gray Verhuslt forecast optimization control.