Natural frequencies of an infinite beam on a simple inertial foundation model
A simple inertial foundation model consisting of a 3-dimensional shear layer resting on a bed of closely spaced individual rods capable of wave propagation in the axial direction is suggested here. The frequency equation for an infinite beam resting on such a foundation is determined. It is found to be the same as one given for a beam resting on a 3-D inertial layer. Therefore, this model can be successfully used for considering the effect of the inertia of the foundation on the dynamic response of the structures resting on it.
scientific article; zbMATH DE number 4026937