Since the peak is achieved
at *w* *max* = 0.8483, exciting the system using the following sinusoidal
input

gives the steady-state
response of the system as

This
shows that the system response will be amplified 11.47 times for an input signal at the
frequency *w**max*, which could be undesirable if *F**1* and *F**2* are disturbance force and *x**1* and *x**2* are the
positions to be kept steady.