Question 6.15: The equation for the undamped, forced vibration of the pendu...
The equation for the undamped, forced vibration of the pendulum device described in Fig. 6.19, page 150, is given in (6.81e). Solve this equation for the case when both the motion of the hinge support and the angular motion of the pendulum are small. Assume that the pendulum is released from rest at a small angle \phi_0.
\ddot{\phi} + p^2 \sin \phi=\frac{x_O \Omega^2}{\ell} \cos \phi \sin \Omega t \text {, } (6.81e)
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