The Research On Auto Identification For Shaft Orbits

An accuracy measurement method based on the three-point method that can measure the eccentricity disk's vibration is developed, through analysis the signals, the error signal caused by the setting eccentricity can be get rid of, and the error signal and the vibration of X-direction and Y-direction can be got, the emulation proved that the theory analysis is correct. A new method of identifying the axis orbit shape of the rotor is developed, first, acquires the signal of X-direction and Y-direction and obtains the shape of the rotor after denoising, second, calculate the improved line moment invariants in stead of the area moment invariants, the reference patterns and unknown patterns can be got, and then calculate the interconnect degree between the reference patterns and the unknown patterns, so the unknown patterns can be identified. At last, three axis orbit shapes of the MJF-30-6 generator are identified.