Research Article

Theoretical Vibration Analysis Regarding Excitation due to Elliptical Shaft Journals in Sleeve Bearings of Electrical Motors

Figure 12

Relative orbits between the bearing housing point and the shaft journal point and between and , described by (a) the semi-major axes, (b) the semi-minor axes, and (c) the angle of the semi-major axes. (d) Definition of the relative orbits. Boundary condition: identical orientation of the elliptical shaft journals ( ) and different rotor speeds .
860293.fig.0012a
(a)
860293.fig.0012b
(b)
860293.fig.0012c
(c)
860293.fig.0012d
(d)