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The nonlinear analysis of a continuous rotor system (CRS) is performed in this paper. The CRS model is derived with the inclusion of some important factors, like the gyroscopic effect, the rotary inertia of disc and shaft, large shaft deformation, and constraint to the axial motion of the shaft at the bearing ends. The entire derivation is explained in the first part (Part I) of this two-part article. The nonlinear system is analysed in this second part. Method of multiple scales is applied to obtain the autonomous amplitude and phase equations for simultaneous resonance conditions. Comparison of the analytical and numerical results yield a close match. Localized and nonlocalized oscillations are examined. Linear stability analysis is performed to assess the stability of steady-state solutions. Expressions for critical value of a parameter along both directions are derived to determine the emergence of limit points (LPs). A comprehensive parametric analysis is conducted to investigate the impact of various system parameters on the system dynamics. To examine the nature of vibration of CRS, time-response, phase-plane, amplitude-frequency, and phase-frequency diagrams are plotted. Various intriguing non-linear phenomena such as multivalued solutions, multiple loops, and multiple jump phenomena are observed.

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