Impulsive Control of the Rotor-Stator Rub Based on Phase Characteristic

Figure 4

Control result at 𝜔=1.9. (a) The trajectory of rotor center before control; (b) the trajectory of rotor center after control; (c) the phase portrait of rotor center by impulsive control; (d) the time response of radial displacement by impulsive control.

(a)

(b)

(c)

(d)