A Crack Identification Method for Bridge Type Structures under Vehicular Load Using Wavelet Transform and Particle Swarm Optimization
Author
Source
Advances in Acoustics and Vibration
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-06-15
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
In this work a crack identification method is proposed for bridge type structures carrying moving vehicle.
The bridge is modeled as an Euler-Bernoulli beam, and open cracks exist on several points of the beam.
Half-car model is adopted for the vehicle.
Coupled equations of the beam-vehicle system are solved using Newmark-Beta method, and the dynamic responses of the beam are obtained.
Using these and the reference displacements, an objective function is derived.
Crack locations and depths are determined by solving the optimization problem.
To this end, a robust evolutionary algorithm, that is, the particle swarm optimization (PSO), is employed.
To enhance the performance of the method, the measured displacements are denoised using multiresolution property of the discrete wavelet transform (DWT).
It is observed that by the proposed method it is possible to determine small cracks with depth ratio 0.1 in spite of 5% noise interference.
American Psychological Association (APA)
Gökdağ, Hakan. 2013. A Crack Identification Method for Bridge Type Structures under Vehicular Load Using Wavelet Transform and Particle Swarm Optimization. Advances in Acoustics and Vibration،Vol. 2013, no. 2013, pp.1-10.
https://search.emarefa.net/detail/BIM-486837
Modern Language Association (MLA)
Gökdağ, Hakan. A Crack Identification Method for Bridge Type Structures under Vehicular Load Using Wavelet Transform and Particle Swarm Optimization. Advances in Acoustics and Vibration No. 2013 (2013), pp.1-10.
https://search.emarefa.net/detail/BIM-486837
American Medical Association (AMA)
Gökdağ, Hakan. A Crack Identification Method for Bridge Type Structures under Vehicular Load Using Wavelet Transform and Particle Swarm Optimization. Advances in Acoustics and Vibration. 2013. Vol. 2013, no. 2013, pp.1-10.
https://search.emarefa.net/detail/BIM-486837
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-486837