Abstract
As the rotor-bearing system with the high speed, high power and high reliability is developed. The vibrations fault of a rotor-bearing system is of much interest, Many units of speed over the critical speed, But this was followed by a series of incidents has led to the discovery of the supercritical rotor to a certain speed operation, be strong and self-excited oscillation caused instability, and this is the film rotor oscillation instability. The author of the rotor vibration now understand the basic fault basis, the paper established the objectives and content in a multi-disk rotor system on the film whirl of the film oscillation experiments in the process of research, reveals the film from the rotor whirl of oscillation in the development process. given rotor oscillations occur when the film more cyclical orbit, the spectral characteristics. Procedures for rotor vibration signal acquisition and control, Collecting data on the origin of software used for vibration signal analysis and comparison; On this basis the use of damping devices and again on the rotor vibration tests and comparative analysis. Research on the film instability rotor failure and the fulfillment of rotating machinery condition monitoring and forecasting are important.