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Title:

AUSTRIAN TRACK TESTING AND RECORDING CAR EM 250: SOURCE FOR WHEEL-RAIL INTERACTION ANALYSIS

Accession Number:

00800112

Record Type:

Component

Availability:

Transportation Research Board Business Office

500 Fifth Street, NW
Washington, DC 20001 USA

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Order URL: http://worldcat.org/isbn/0309066921

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.

Supplemental Notes:

This paper appears in Transportation Research Record No. 1713, Railroad Track Engineering and Maintenance; Passenger Rail Planning and Operations.

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 USA

Authors:

PRESLE, G
Hanreich, W
Mittermayr, P

Pagination:

p. 22-28

Publication Date:

2000

Serial:

Transportation Research Record

Issue Number: 1713
Publisher: Transportation Research Board
ISSN: 0361-1981

ISBN:

0309066921

Features:

Figures (9) ; References (2)

Uncontrolled Terms:

Geographic Terms:

Subject Areas:

Highways; Maintenance and Preservation; Railroads

Files:

TRIS, TRB, ATRI

Created Date:

Oct 5 2000 12:00AM

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