基于NAF-FxLMS控制器的垂尾抖振主动控制

In order to improve the performance of a vertical tail buffeting active control system, a negative acceleration feedback (NAF) controller was combinedly used with the filtered-x least mean square (FxLMS) algorithm, and an improved feedback secondary path damping compensation method was proposed. Aiming at the control of vertical tail low order mode buffeting responses, the NAF controller was designed to compensate the damping of the secondary path, and a multi-mode NAF-FxLMS controller was established. Then the active control ground experiment for suppressing vertical tail buffeting responses was carried out. The experimental results show that the NAF-FxLMS controller has better control effect on the vertical tail buffeting response suppression than the individual FxLMS controller or NAF controller.