Next Article in Journal
Primary User Localization Algorithm Based on Compressive Sensing in Cognitive Radio Networks
Previous Article in Journal
An Improved Fireworks Algorithm Based on Grouping Strategy of the Shuffled Frog Leaping Algorithm to Solve Function Optimization Problems
Article Menu

Export Article

Open AccessArticle
Algorithms 2016, 9(2), 24; doi:10.3390/a9020024

Structural Damage Localization by the Principal Eigenvector of Modal Flexibility Change

Department of Civil Engineering, Shaoxing University, Shaoxing 312000, China
*
Author to whom correspondence should be addressed.
Academic Editor: Stefano Mariani
Received: 2 February 2016 / Revised: 8 March 2016 / Accepted: 31 March 2016 / Published: 13 April 2016

Abstract

Using the principal eigenvector (PE) of modal flexibility change, a new vibration-based algorithm for structural defect localization was presented in this paper. From theoretical investigations, it was proven that the PE of modal flexibility variation has a turning point with a sharp peak in its curvature at the damage location. A three-span continuous beam was used as an example to illustrate the feasibility and superiority of the proposed PE algorithm for damage localization. Furthermore, defect localization was also performed using the well-known uniform load surface approach for comparison. Numerical results demonstrated that the PE algorithm can locate structural defects with good accuracy, whereas the ULS approach occasionally missed one or two defect locations. It was found that the PE algorithm may be promising for structural defect assessment. View Full-Text
Keywords: defect localization; principal eigenvector; modal flexibility variation; deflection; vibration defect localization; principal eigenvector; modal flexibility variation; deflection; vibration
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Li, C.-H.; Yang, Q.-W.; Sun, B.-X. Structural Damage Localization by the Principal Eigenvector of Modal Flexibility Change. Algorithms 2016, 9, 24.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Algorithms EISSN 1999-4893 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top