Inverse Mode Problem for the Discrete System of a Two-span Beam with Two Free Ends

Abstract

The inverse mode problem of the two-span beam with both free ends is discussed. Physical parameters of the discrete system of the two-span beam with two free ends are reconstructed from two sets of strain modes and corresponding circular frequencies, and necessary conditions for the existence of the solution for the inverse problem are considered. Finally, two numerical examples are given and the formulation is verified.