THERMAL PATTERNS IN 36 INCH FREIGHT CAR WHEELS DURING SERVICE TESTS
Service tests were conducted on the Atchison, Topeka and Santa Fe Railway Co. track at various speeds with an instrumented brake beam to determine the normal (perpendicular) and retarding (circumferential) brake shoe forces applied to a wheel set. The specially designed brake beam and load measuring transducers were installed in a truck under a 100-ton gondola used as the test car. The wheel set installed in this truck consisted of two different wheel designs mounted on the same axle. These wheels were instrumented with thermocouples embedded in the tread and plate areas to determine the temperature generated under controlled service brake application. Different types of brake shoes instrumented with thermocouples were also used to determine wheel-brake shoe heat flow characteristics. The retarding force applied to the wheel tread surface by the brake shoe was controlled by an air source independent of the train line source.
- Contributed by the Rail Transportation Division of The American Society of Mechanical Engineers for presentation at the Winter Annual Meeting, New York, N.Y., December 5, 1976.
American Society of Mechanical EngineersTwo Park Avenue
New York, NY USA 10016-5990
- Novak, G E
- Dahlman, G E
- ECK, B J
- Kucera, W
- Publication Date: 1976-12-5
- Features: Figures; References;
- Pagination: 8 p.
- TRT Terms: Brake shoes; Braking performance; Failure; Instrumentation; Testing; Thermal stresses; Vehicle design; Wheels
- Identifier Terms: Atchison, Topeka and Santa Fe Railway Company
- Old TRIS Terms: Wheel design; Wheel failure; Wheel thermal stresses
- Subject Areas: Design; Railroads; Vehicles and Equipment;
- Accession Number: 00145142
- Record Type: Publication
- Source Agency: American Society of Mechanical Engineers
- Report/Paper Numbers: 76-WA/RT-11 Conf Paper
- Files: TRIS
- Created Date: Feb 1 1977 12:00AM