Pattern Recognition of modal Sensitivity for Structural Damage Identification of Truss Structure

J. Ocean Eng. Technol. 2000;14(1):80-87.

트러스의 구조손상추정을 위한 진동모드민감도의 패턴인식

류연선

부경대학교 해양공학과

Keywords: Modal parameters, System identification, Truss structure, Damage detection, Pattern recognition

핵심용어: 모드특성치, 구조식별, 트러스 구조, 손상발견, 패턴인식

Abstract

Despite many combined research efforts outstanding needs exist to develop robust safety-estimation methods for large complex structures. This paper presents a practical damage identification scheme which can be applied to truss structures using only limited modal responses. firstly a theory of pattern recognition (PR) is described. Secondly existing damage-detection algorithms are outlined and a newly-derived algorithms for truss structures. Finally the feasibility of the proposed scheme is evaluated using numerical examples of plane truss structures.