Research Article

Parametric and Internal Resonances of an Axially Moving Beam with Time-Dependent Velocity

Figure 16

Phase portraits (a, b), time trace (c), and FFT power spectra (d) in the lower nontrivial stable branch of the frequency response plot of Figure 8 for , , , , and .
919517.fig.0016a
(a)
919517.fig.0016b
(b)
919517.fig.0016c
(c)
919517.fig.0016d
(d)