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

Figure 6

Rotor UMP caused by stator deformation: (a) UMP curves in concave condition, with , , and , (b) UMP curves in convex condition, with , , and , and ((c) and (d)) UMP spectra in concave case and convex case with respect to normal condition, 12.5% deformation, 25% deformation, and 37.5% deformation, respectively (from left to right).

(a)

(b)

(c)

(d)