PRINCIPLES OF BRAKE CONTROL SYSTEM DESIGN
The paper describes the development of a method of predicting brake block wear and gives the results of a first attempt to establish its reliability by comparing the predicted wear with that which actually occurs in an existing service. A new approach to laboratory-scale wear testing has enabled the wear per unit energy dissipated of a given composition material to be determined for any relevant combination of the three basic parameters -- tire surface temperature, rubbing speed and applied force. The values of energy dissipation, rubbing speed and brake force at any instant during a given service are calculated from a knowledge of the relevant vehicle parameters and from direct observation or calculation of the braking duties undertaken. The surface temperatures are calculated from these data using one-dimensional heat flow equations which are improvements on those developed previously. A computer program has been developed which calculates these temperatures and uses laboratory wear data to work out the predicted wear for the service being studied.
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Supplemental Notes:
- International Conference on Railway Braking, University of York, England, September 26-27, 1979.
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Corporate Authors:
Institution of Mechanical Engineers
1 Birdcage Walk
London SW1H 9JJ, England -
Authors:
- McGuire, M
- Conference:
- Publication Date: 1979
Media Info
- Features: References;
- Pagination: p. 143-151
Subject/Index Terms
- TRT Terms: Brake shoes; Composite materials; Computer programs; Energy absorption; Laboratory tests; Service life; Wear
- Subject Areas: Design; Railroads;
Filing Info
- Accession Number: 00324898
- Record Type: Publication
- Source Agency: Engineering Index
- Report/Paper Numbers: 1979-11 Conf Paper
- Files: TRIS
- Created Date: Feb 6 1981 12:00AM