ROAD AND LABORATORY INVESTIGATION OF TRUCK BOLSTERS FOR UNIT TRAIN CARS
Problems of "excessive" wear and failure have arisen in new cars in unit train service, some due to over-the-road running, others to handling of light cars. Similar problems can arise in trains of non-uniform, but regularly assigned, car types in continuous high-mileage, high speed, rapid turnaround service. Railroad cars permanently assigned to unit train service travel many more miles yearly than cars in conventional freight service. At terminals their loading and unloading is expedited to reduce turnaround time. Consequently, the load spectrum that a conventional-service car would encounter over years, is compressed, for the unit train car, into a much shorter time interval. This paper describes the experiences with truck bolsters from a coal-hauling fleet of unit train cars.
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Supplemental Notes:
- Presented at the 1976 Joint ASME/IEEE Railroad Technical Conference, Chicago, Illinois, April 6-8, 1976. For the complete volume see RRIS No. 02 131638, Publication 7602.
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Corporate Authors:
American Society of Mechanical Engineers
Two Park Avenue
New York, NY United States 10016-5990 -
Authors:
- Weber, H B
- Driver, J B
- Conference:
- Publication Date: 1976
Media Info
- Features: Figures; References; Tables;
- Pagination: p. 87-114
Subject/Index Terms
- TRT Terms: Bolsters; Cracking; Fatigue cracking; Freight cars; Gondola cars; High capacity cars; Impact loads; Trucks; Unit trains; Unloading facilities; Vehicle design; Wear
- Identifier Terms: Union Pacific Railroad
- Old TRIS Terms: Car component design; Freight car component performance; Impact loading; Truck and bolster systems
- Subject Areas: Design; Motor Carriers; Railroads;
Filing Info
- Accession Number: 00131642
- Record Type: Publication
- Source Agency: American Society of Mechanical Engineers
- Files: TRIS
- Created Date: May 14 1976 12:00AM