The base-excited system of Figure 3.59 is driven by a force with frequencies in the range \(1.0 \leq \omega_{b} / \omega_{n} \leq\) 2.0. For parameter values \(m=1 \mathrm{~kg}, k=9 \mathrm{~N} / \mathrm{cm}\), and \(Y=10 \mathrm{~cm}\), select a value of \(c\) so that the average magnitude of the relative motion equals \(1 \mathrm{~cm}\) over the frequency range.

Transcribed Image Text:

1x(t) m y(t) = Y sincit Figure 3.59: A model of a base-excited system.