Abstract
This paper develops a new non-contact active feedback control of leakage-flow-induced web flutter in a narrow passage, by changing the width at the inlet, outlet or multipoint of the narrow passage. In this paper, the effective suppression of the leakageflow-induced web flutter by the active feedback control technique is demonstrated numerically. The vibration displacement under the controlled condition is examined with varying the controller gain and phase-shift between the actuator and sensor (vibration displacement) signal of the flexible web. As a result, it is indicated that the active feedback control technique suppress the leakage-flow-induced web flutter effectively.
