Abstract
This paper describes the active feedback control of leakage-flow-induced vibration in translational one-degree-of-freedom system. In this paper, suppression of the leakage-flow-induced vibration by the active feedback control technique is demonstrated experimentally and theoretically. The leakage-flow-induced vibration is suppressed by the active feedback to the moving of the baffle plate at the inlet or outlet of the passage. The vibration is stabilized by the phase progress between displacement of a baffle plate and displacement of a rigid body at inlet and the phase lag at outlet. The critical velocity of calculation result accorded with an experiment result qualitatively.
