Impact of Different Static Air-Gap Eccentricity Forms on Rotor UMP of Turbogenerator

Figure 5

Rotor UMP and vibration results for rotor offset cases: (a) UMP curves by FEM calculation in direction, (b) tested vibration curves in direction, and ((c) and (d)) UMP spectra and vibration spectra, respectively, for normal condition, 0.1 mm rotor offset, 0.2 mm rotor offset, and 0.3 mm rotor offset (from left to right) in direction.

(a)

(b)

(c)

(d)