Figure 6. Phase diagram and Poincare map at compressor disk node (Ω=500 rpm)

From

Active Vibration Control in Engine Rotors using Electromagnetic Actuator System

M. Rajasekhar, Dr. J. Srinivas

Journal of Mechanical Design and Vibration. 2014, 2(1), 25-30 doi:10.12691/jmdv-2-1-3