Abstract
The dynamic stability of an elastically supported Timoshenko beam excited by constant velocity equally spaced traveling masses has been investigated. The regions of dynamic stability are determined for different values of the elastic foundation stiffness. Floquet theory is utilized to study the parametric regions of stability and instability, which are displayed in graphical form. Since the occurrence of this dynamic instability reduces the axial buckling load of the beam, the result is important for the study of buckling of a continuous beam.
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