유사도 기반 손상추정 수치해석

Abstract

The main objective of this paper is to develop a new damage detection method. The newly developed damage detection method uses natural frequencies change ratios between non damaged structures and damaged structures. Two parameters, cosine similarity and magnitude index, are considered to estimate location and se-verity of the damage in the structure. A numerical example, a jacket structure, was considered to verify the performance of the proposed method. As a result, the damages in the structures is accurately detected.