HOT SPOT HEATING BY COMPOSITION SHOES
It is generally understood that uneven heating of the tread of a wheel during braking is possible. A method has been devised to measure the intensity and frequency of hot spots on the wheel tread surface. After a description of the measurement apparatus and technique, results of a study of hot spots during constant speed brake applications with single composition shoes are presented. Possible lowering of the hot spot level by increasing the conformability of the brake shoe is studied by cutting one slot across each pad of a brake shoe. This method of hot spot study may be useful for future analysis and improvement of brake shoes.
- Contributed by the Rail Transportation Division of The American Society of Mechanical Engineers for presentation at the IEEE-ASME Joint Railroad Conference, San Francisco, California, April 15-17, 1975.
American Society of Mechanical EngineersTwo Park Avenue
New York, NY USA 10016-5990
- Wetenkamp, H R
- Kipp, R M
- Publication Date: 1975-4
- Features: Figures; References; Tables;
- Pagination: 5 p.
- TRT Terms: Brake shoes; Braking performance; Composite materials; Cracking; Defects; Temperature measurement; Thermal degradation; Thermal stresses; Wheels
- Old TRIS Terms: Thermal cracks (Wheels); Wheel flaws; Wheel thermal stresses
- Subject Areas: Railroads; Vehicles and Equipment;
- Accession Number: 00095226
- Record Type: Publication
- Source Agency: American Society of Mechanical Engineers
- Report/Paper Numbers: 75-RT-2
- Files: TRIS
- Created Date: Jul 2 1976 12:00AM