RefDoc
Haut

Faire une nouvelle recherche
Make a new search
Lancer la recherche


Titre du document / Document title

Wavelet-based multiresolution analysis of pavement profiles as a diagnostic tool

Auteur(s) / Author(s)

SHOKOUHI Parisa (1) ; GUCUNSKI Nenad (1) ; MAHER Ali (1) ; ZAGHLOUL Sameh M. (2) ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

(1) Department of Civil and Environmental Engineering, Rutgers University, 623 Bowser Road, Piscataway, NJ 08854-8014, ETATS-UNIS
(2) Stantec Consulting, Suite 108, 150 Lawrence Bell Drive, Amherst, NY 14221, ETATS-UNIS

Résumé / Abstract

Discrete wavelet transform (DWT) was proposed as a new diagnostic tool for locating various frequency-related features of profiles, such as repeated waves and short-lived surface distress, that affect ride quality. The shortcomings of power spectrum density (PSD) analysis in evaluating the distribution of energy of a profile between various frequency bandwidths were pointed out. The theoretical background and the basics of the DWT decomposition algorithm are discussed. Advantages of DWT analysis over PSD analysis in detection of short-lived features of the profile are illustrated by an example. The results of both the PSD and DWT analyses of three profile data, taken from data collected as a part of an ongoing research project sponsored by New Jersey Department of Transportation, are presented. The results indicate that DWT analysis can capture both short-lived high-frequency and long-lived low-frequency features of the profile and, consequently, provides a better representation of the profile characteristics. The application of DWT in the development of new ride indices is also discussed.

Revue / Journal Title

Transportation research record    ISSN  0361-1981   CODEN TRREDM 

Source / Source

2005, no 1940 (152 p.)  [Document : 10 p.] (14 ref.), [Notes: Many of these papers were presented at the TRB 84th Annual Meeting in January 2005], pp. 79-88 [10 page(s) (article)]

Langue / Language

Anglais

Editeur / Publisher

National Research Council, Washington, DC, ETATS-UNIS  (1974) (Revue)

Mots-clés anglais / English Keywords

Decomposition

;

Computing method

;

Wavelet transformation

;

Failure analysis

;

Wavelet base

;

Multiresolution analysis

;

Construction diagnostic

;

Pavement

;

Mots-clés français / French Keywords

Décomposition

;

Méthode calcul

;

Transformation ondelette

;

Analyse dommage

;

Base ondelette

;

Analyse multirésolution

;

Diagnostic construction

;

Chaussée

;

Mots-clés espagnols / Spanish Keywords

Descomposición

;

Método cálculo

;

Transformación ondita

;

Análisis avería

;

Base ondíta

;

Análisis multiresolución

;

Diagnóstico construcción

;

Calzada

;

Localisation / Location

INIST-CNRS, Cote INIST : 10459 B, 35400015341515.0100

Nº notice refdoc (ud4) : 17595876



Faire une nouvelle recherche
Make a new search
Lancer la recherche
Bas