Proposing a novel structural damage indicator for beams: integrating single-node mode shape parameters and additional mass methods

In order to solve the problem of structural damage identification, this paper proposes a damage identification method, called ASS, based on a single-node mode shape parameter. The method, which combines the mode shape parameter and the additional mass methods, can accurately identify the structural damage position and the damage parameter. Moreover, the best accuracy is achieved when an additional mass of approximately 5% of the total mass of the beam is used near the fixed hinge support. In the proposed identification method, only the single-node mode shape parameter of the beam structure is required to judge the position of the damage. This can lead to its straightforward adoption in practical engineering situations requiring structural damage detection in beams.