Next Article in Journal
Sensing Characteristics of Tilted Long Period Fiber Gratings Inscribed by Infrared Femtosecond Laser
Next Article in Special Issue
Performance of Rayleigh-Based Distributed Optical Fiber Sensors Bonded to Reinforcing Bars in Bending
Previous Article in Journal
MEMS Gyroscope Automatic Real-Time Mode-Matching Method Based on Phase-Shifted 45° Additional Force Demodulation
Previous Article in Special Issue
Effects of the Ground Resolution and Thresholding on Crack Width Measurements
Article Menu
Issue 9 (September) cover image

Export Article

Open AccessArticle
Sensors 2018, 18(9), 3002; https://doi.org/10.3390/s18093002

Damage Detection in Active Suspension Bridges: An Experimental Investigation

1
Robotics Institute, Beihang University, 100191 Beijing, China
2
Active Structures Laboratory, Université Libre de Bruxelles, 1050 Brussels, Belgium
3
Department of Mechanical, Materials and Aerospace Engineering, University of Liverpool, Liverpool L69 3BX, UK
4
Optoelectronics Section, ESA-ESTEC, 2201 AZ Noordwijk, The Netherlands
*
Authors to whom correspondence should be addressed.
Received: 8 August 2018 / Revised: 2 September 2018 / Accepted: 4 September 2018 / Published: 7 September 2018
(This article belongs to the Special Issue Bridge Structural Health Monitoring and Damage Identification)
Full-Text   |   PDF [5333 KB, uploaded 7 September 2018]   |  

Abstract

This paper considers a Hilbert marginal spectrum-based approach to health monitoring of active suspension bridge hangers. The paper proposes to takes advantage of the presence of active cables and use them as an excitation mean of the bridge, while they are used for active damping. The Hilbert–Huang transform is used to calculate the Hilbert marginal spectrum and establish a damage index for each hanger of the suspension bridge. The paper aims to investigate the method experimentally, through a series of damage scenarios, on a laboratory suspension bridge mock-up equipped with four active cables; each active cable is made of a displacement actuator collocated with a force sensor. Different locations and levels of damage severity are implemented. For the first time, the investigation demonstrates experimentally the effectiveness of the technique, as well as its limitations, to detect and locate the damage in hangers of a suspension bridge. View Full-Text
Keywords: damage detection; active cable; Hilbert–Huang transform; suspension bridges, health monitoring damage detection; active cable; Hilbert–Huang transform; suspension bridges, health monitoring
Figures

Figure 1

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

Share & Cite This Article

MDPI and ACS Style

Meng, F.; Mokrani, B.; Alaluf, D.; Yu, J.; Preumont, A. Damage Detection in Active Suspension Bridges: An Experimental Investigation. Sensors 2018, 18, 3002.

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]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top