Research Article
Nonlinear Dynamic Analysis of Rotor-Bearing System with Cubic Nonlinearity
Figure 4
Bifurcation diagrams of the nondimensional displacement in x-direction X1 versus the rotational speed Ω1 rad/s for the clearance = 20 μm. Note that P-1 means the periodic one motion, P-2 means the periodic two motion, and A means the aperiodic motion. (a) = 0 N/m3; (b) = 3 × 1015 N/m3; (c) = 3 × 1016 N/m3; (d) = 3 × 1017 N/m3.
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