摘要
Bifurcation and chaos in rigid Jefccott rotor bearing system are studied, by following the multi variable Floquet theory. By calculating the largest Lyapunov exponent, the chaotic motion and ″periodic window″ phenomena are found for a certain bifurcation parameter. The results show that the motion of the rotor system features a complicated nonlinear dynamics phenomena, such as period doubling bifurcation, saddle node bifurcation, secondary Hopf bifurcation and chaotic motion.
