Question 2
A damped natural frequency of a system as obtained from a free vibration test is 14.6 Hz. During
the forced vibration test with constant excitation force on the same
system, maximum amplitude
of vibration is found to be 12.4 Hz. Find the damping ratio/factor (C) for the system if the
damping
constant is 0.95 Ns/mm and mass of 5 kg.
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