Dynamics of an axially moving viscoelastic beam subject to axial tension

In this paper, a spectral element model is derived for the dynamics and stability analyses of the axially moving viscoelastic beams subject to axial tension. The viscoelastic material is represented in a general form by using the one-dimensional constitutive equation of hereditary integral type. The high accuracy of the present spectral element model is verified first by comparing the eigenvalues obtained by the present spectral element model with those obtained by using the conventional finite element model as well as with the exact analytical solutions. The effects of viscoelasticity and moving speed on the dynamics and stability of moving beams are numerically investigated.