A fuzzy logic-based damage identification method for simply-supported bridge using modal shape ratios

DOI

10.1080/18756891.2012.718106How to use a DOI?

Keywords

Damage identification, Simply-supported bridge, Fuzzy logic, Modal shape ratio

Abstract

A fuzzy logic system (FLS) is established for damage identification of simply supported bridge. A novel damage indicator is developed based on ratios of mode shape components between before and after damage. Numerical simulation of a simply-supported bridge is presented to demonstrate the memory, inference and anti-noise ability of the proposed method. The bridge is divided into eight elements and nine nodes, the damage indicator vector at characteristic nodes is used as the input measurement of FLS. Results reveal that FLS can detect damage of training patterns with an accuracy of 100%. Aiming at other test patterns, the FLS also possesses favorable inference ability, the identification accuracy for single damage location is up to 93.75%. Tests with noise simulated data show that the FLS possesses favorable anti-noise ability.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Download article (PDF)

TY  - JOUR
AU  - Hanbing Liu
AU  - Yubo Jiao
AU  - Yafeng Gong
PY  - 2012
DA  - 2012/08/01
TI  - A fuzzy logic-based damage identification method for simply-supported bridge using modal shape ratios
JO  - International Journal of Computational Intelligence Systems
SP  - 627
EP  - 638
VL  - 5
IS  - 4
SN  - 1875-6883
UR  - https://doi.org/10.1080/18756891.2012.718106
DO  - 10.1080/18756891.2012.718106
ID  - Liu2012
ER  -