Research Article

Free Vibrations of an Elastically Restrained Euler Beam Resting on a Movable Winkler Foundation

Figure 4

Variations of the first two wave numbers, and , with for five degenerate cases with a static Winkler foundation (solid line) and with a movable Winkler foundation (dashed line): (a) Sl-Fi and Fr-Sl, (b) Fr-Fi, (c) Fr-Sl, and (d) Sl-Sl.