Abstract
In this paper, nonlinear dynamic characteristics of a single span rotor system with two discs are investigated under fixed-point and local arc rub-impact conditions. A twenty-degree-of-freedom model considering the gyroscopic effect is developed, the simple Coulomb friction model and piecewise linear spring model to describe the contact between the rotor and the stator. The vibration chracteristics of the rotor system with two types of rub-impact forms are analyzed with respect to the effects of rotating speed by using spectrum cascades, vibration waveforms, orbits and frequency spectra. The simulation results show that different rotor motions appear, such as P1(period-1), P2, P3 and P4 with the increasing rotating speed under two rub-impact conditions. And some combination frequency components and continuous spectra appear under the local arc rub-impact condition, which are different from those under the fixed-point rub-impact condition.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
