Problem of Rotor Passing through Critical Speed with Gyroscopic Effect : Analysis by Asymptotic Method and Experiments

Abstract

The nonstationary vibration of a rotor with a gyroscopic effect in passing through its critical speed is studied by using the asymptotic method. In particular, the influence of a gyroscopic effect in passing through a critical speed is studied in detail on two cases, i.e., one of a constant acceleration and the other considering the interaction between the driving source and the vibration system. The effect of an internal damping on the stability is also studied. The experiments support the analysis.