Numerical Simulation of Nonlinear Dynamical Behaviors of Active Magnetic Bearing-rotor System

作者：Miao Lu, Lingmei Zhang, Sun Bao-cang, Huijuan Fan · 年份：2006 · 被引用次数：2 · 研究领域：Quantum chaos and dynamical systems、Magnetic Bearings and Levitation Dynamics、Chaos control and synchronization

In this paper, the nonlinear dynamical behaviors of an active magnetic bearing-rotor system are investigated using numerical simulation. Firstly, the nonlinear magnetic force is obtained by Taylor series. Secondly, the primary-internal resonance of an AMBRS(active magnetic bearing) -rotor system is studied with the help of Lung- Kutta method. To analyze the motion characters of system, some Poincare maps are drawn and several Lyapunov exponents are calculated. The conclusion:the chaotical phenomenon by period-doubling bifurcation and ring surface break period-doubling bifure are respectively discovered .Especially, a chaotic attractor on Poincare map that is extremely sensitive to initial value is discovered.