Dynamic Instability Analysis of a Rotating Ship Shaft under a Periodic Axial Force by Discrete Singular Convolution

Figure 8

Dynamic instability region of a rotating ship shaft with = 5 and = 0.05. “—,” “- -,” instability region boundary with = 5 = 0.05 and = 5 = 0 by Floquet’s method, “●,” “○,” stable and unstable data with = 5 = 0.05 by DSC method.