Effect of the Time-Varying Damping on the Vibration Isolation of a Quasi-Zero-Stiffness Vibration Isolator

Figure 7

Variations of phase diagrams for different excitation frequencies: (a) 51.82 rad/s, (b) 51.83 rad/s, (c) 51.84 rad/s, and (d) 51.86 rad/s.

(a)

(b)

(c)

(d)