If the generalized driving forces Qi are not sinusoidal, show that the forced vibrations of the normal coordinates in the absence of damping are given by
where Gi(ω) is the Fourier transform of Qi defined by
If the dissipation function is simultaneously diagonalized along with T and V, show that the forced vibrations are given by
which has the typical resonance denominator form. These results are simple illustrations of the powerful technique of the operational calculus for handling transient vibrations.
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