Bifurcation and Nonlinear Dynamic Analysis of Externally Pressurized Double Air Films Bearing System

Figure 4

Poincaré maps of rotor center trajectory at (a) 𝑚₁=2.2, (b) 8.17, (c) 8.22, (d) 8.29, (e) 9.1, (f) 10.08, (g) 10.7, (h) 10.75, (i) 11.23, (j) 11.27, (k) 11.66, and (l) 11.68 kg.

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)

(i)

(j)

(k)

(l)