A machine of mass 200 kg is driven harmonically by a 100-N force at 10 rad/s.
The stiffness of the machine is 20,000 N/m.
Design a broadband vibration absorber [i.e., equation (5.37)] to limit the machine's motion as much as possible over the frequency range 8 to 12 rad/s.
Note that other physical constraints limit the added absorber mass to be, at most, 50 kg.