M. Mehrjoo - Department of Civil Engineering, Islamic Azad University Hamedan Branch, Hamedan, Iran

An approach for evaluating the forced vibration response of Timoshenko beam excited by a concentrated moving load is developed in this research. The components of the stiffness matrix for the Timoshenko beam elemen are derived using the Superposition principle and compatibility relations , and finally represented in closed-form expressions. Then, forced vibration response is obtained under a moving load with a constant velocity. The forced vibration response may be calculated by the modal expantion method using the determined eigenvectors obtained by eigenvalue analysis. The proposed approach is employed through one cantilever beam

Timoshenko beam ; moving load; modal expantion method; forced vibration response