Research on the Influence of Rub-impact Buffer Stroke on the Dynamic Response of Two-section Rotor

Abstract The two-section rotor needs to go through multiple critical speeds in the process of speed increase. When approaches speed, its amplitude increases rapidly, easily causing collision damage. auxiliary over-critical device cushions and protects rubbing, which makes it pass under safe amplitude. In this paper, influence buffer stroke, key structural parameter device, on dynamic response at first-order bending is analyzed, stroke calculated impact friction force calculated. design principles results parameters supercritical are proposed.