Research Article

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

Table 1

Frequency equations and constants in mode shapes for ten degenerate cases with .

CaseFrequency equation

Sl-Fi010
Fr-Sl11
Fr-Fi11
Pi-Sl1000
Sl-Sl0100
Pi-Pi1000
Fr-Fr11
Fi-Fi1−1
Fr-Pi11
Pi-Fi100

Here and evermore, for convenience, Fr = free, Pi = pinned, Sl = sliding, and Fi = fixed.