Active vibration control of gear drive system based on FxRLS algorithm

An active vibration control structure applying a filter-x recursive least-squares adaptive algorithm was developed for suppressing gearbox vibration effectively and fast. The system employs a piezoelectric stack actuator to deliver the active control force through a rolling element-bearing. In order to evaluate the feasibility of the system, an integrated simulation system employing a controller based on filter-x recursive least-squares algorithm was created. A virtual prototype of a two-stage gearbox was integrated into the simulation system. The results yield 9-14dB accentuation in the gearbox vibration levels at the frequency with highest power. Additionally, the proposed control system exhibits faster convergence rate under various working conditions. Joint simulation demonstrate that the proposed FxRLS system exhibits faster convergance rate under various working conditions, up to 14dB reduction in the vibration response at frequency with highest power can be achieved.