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Titre du document / Document title

Austrian track testing and recording car EM 250: Source for wheel-rail interaction analysis

Auteur(s) / Author(s)

PRESLE Gerard (1) ; HANREICH Werner (2) ; MITTERMAYR Paul (3) ;

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

(1) Austrian Federal Railways, Elisabethstrasse 9, 1010 Vienna, AUTRICHE
(2) Austrian Federal Railways, Zieglergasse B, 1070 Vienna, AUTRICHE
(3) Bureau of Applied Mechanics and Mathematics Lambrechtgasse 5/1., 1040 Vienna, AUTRICHE

Résumé / Abstract

The dynamic behavior and ride quality of railway vehicles are influenced by track quality. Monitoring riding comfort and safety is a major task of the Austrian Federal Railway's Infrastructure Division. The track testing and recording car EM 250 provides a proven measuring instrument for modern track maintenance. Equipped with an inertial measuring system and an optical track gauge measuring system, the track testing and recording car can measure the track alignment and rail profiles at speeds of up to 220 km/h. The measurements, taken every 25 cm, provide binary data files that can be processed offline. Track quality parameters are measured as functions of vehicle acceleration and are stored in a database from which they can be easily retrieved from any computer in the company. The Bureau for Applied Mechanics and Mathematics was commissioned by the Austrian Federal Railways to develop the SIMULAT program for analyzing rolling stock dynamics. In developing the model, special consideration was given to the exact mathematical description of all elements affecting vehicle dynamics. Using an optical measuring system, the track testing and recording car determines the rail cross section on the basis of readings at individual points. The simulation program links the curve with the track data, allowing the analysis of the impact of worn profiles on running stability. For the simulation, the line layout and the track geometry deviations excite the model of track and vehicle. In a followup phase, the vector of generalized degrees of freedom is evaluated, and the results are displayed with a visualization program. The simulation results were compared with data recorded during a test run and showed satisfactory correspondence.

Revue / Journal Title

Transportation research record    ISSN  0361-1981   CODEN TRREDM 

Source / Source

Congrès
Annual Meeting of the Transportation Research Board No79 , ETATS-UNIS (01/2000)
2000, no 1713 (60 p.)  (2 ref.), pp. 22-28

Langue / Language

Anglais

Editeur / Publisher

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

Mots-clés anglais / English Keywords

Rail transportation

;

Rail vehicle

;

Measuring installation

;

Rolling contact

;

Dynamic test

;

Monitoring

;

Numerical simulation

;

Mathematical model

;

Mechanical model

;

Experimental test

;

Aligning (siting)

;

Kinetics

;

Cold roll forming

;

Geometry

;

Force field

;

International conference

;

Mots-clés français / French Keywords

Transport ferroviaire

;

Véhicule ferroviaire

;

Installation mesure

;

Contact roulant

;

Essai dynamique

;

Monitorage

;

Simulation numérique

;

Modèle mathématique

;

Modèle mécanique

;

Vérification expérimentale

;

Tracé alignement

;

Cinétique

;

Profilage

;

Géométrie

;

Champ force

;

Congrès international

;

Mots-clés espagnols / Spanish Keywords

Transporte ferroviaro

;

Vehículo ferroviario

;

Instalación medida

;

Contacto rodante

;

Ensayo dinámico

;

Monitoreo

;

Simulación numérica

;

Modelo matemático

;

Modelo mecánico

;

Verificación experimental

;

Trazado alineamiento

;

Cinética

;

Perfilación

;

Geometría

;

Campo fuerza

;

Congreso internacional

;

Localisation / Location

INIST-CNRS, Cote INIST : 10459 B, 35400009277121.0040

Nº notice refdoc (ud4) : 812849



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