Response in Passing Through Critical Speed of Arbitrarily Distributed Flexible Rotor System : Part 2, Case with Gyroscopic Effect

Abstract

Regarding gyroscopic effects, approximate equations of the responses in passing through critical speeds for distributed mass rotor systems on isotropic or anisotropic supports are derived by an asymptotic method. In the case of flexible rotors on anisotropic supports, the nonstationary vibration in passing through two neighboring critical speeds are computed and the coupling phenomena are discussed. Further, the whirling directions in transient vibrations of a fundamental rotor on anisotropic supports are made clear by numerical solutions.