contributor author | Liu, Yuhang | |
contributor author | Zhou, Shiyu | |
contributor author | Tang, Jiong | |
date accessioned | 2017-11-25T07:20:36Z | |
date available | 2017-11-25T07:20:36Z | |
date copyright | 2016/08/19 | |
date issued | 2016 | |
identifier issn | 0022-0434 | |
identifier other | ds_138_12_121006.pdf | |
identifier uri | http://138.201.223.254:8080/yetl1/handle/yetl/4236556 | |
description abstract | Finite element model (FEM) is a broadly used numerical tool in structural damage detection. In such applications, damage parameters in FEM are estimated by minimizing the differences between experimental modal analysis data and the corresponding FEM model prediction. Very limited works exist on analyzing the identifiability of the FEM used in such applications. In this paper, the identifiability of FEM-based structural damage detection is investigated for undamped elastic beams. We theoretically proved that damage severity at a given location in a uniform beam is identifiable by reformulating the FEM into a linear time invariant (LTI) system. A numerical algorithm is also proposed for checking the identifiability issue of multiple damage locations. Numerical case studies are provided to validate the effectiveness and usefulness of the proposed framework. | |
publisher | The American Society of Mechanical Engineers (ASME) | |
title | Identifiability Analysis of Finite Element Models for Vibration Response-Based Structural Damage Detection in Elastic Beams | |
type | Journal Paper | |
journal volume | 138 | |
journal issue | 12 | |
journal title | Journal of Dynamic Systems, Measurement, and Control | |
identifier doi | 10.1115/1.4034155 | |
journal fristpage | 121006 | |
journal lastpage | 121006-12 | |
tree | Journal of Dynamic Systems, Measurement, and Control:;2016:;volume( 138 ):;issue: 012 | |
contenttype | Fulltext | |