Research on Arrangement Pattern Effect of Baffle Plate in Fluid Balancer on Rotor Vibration(Experiments and Calculations)

Abstract

For reducing the unbalance of rotating bodies, baffle plates in a fluid balancer regulate the movement of the fluid. Baffle plates are used to suppress the beat vibration caused by the fluid flowing in the circumferential direction. The advantages of a pattern in which the baffle plates are placed on the inner or outer side of the flow path were investigated. The dimensions of the flow channel and baffle plates were kept constant. The amount of unbalance and fluid were varied. Vibration measurements, observation of fluid behavior and theoretical analysis were carried out and the following results were obtained. The state of the fluid eccentricity before the onset of the whirring depends on the arrangement pattern. It was found that the arrangement on the outer side was superior for reducing the beat vibration, as the fluid movement during the whirring occurrence was more easily reduced in the outer circumference arrangement.