EQUILIBRIUM STATES OF ECCENTRICALLY LOADED FLAT CARS TRAVERSING IRREGULAR CURVES
A general static analysis, including the effects of centrifugal acceleration, is presented for an arbitrarily loaded freight car negotiating an arbitrary spiral curve. Two types of equilibrium states are investigated: one with and one without car side bearing clearance. Using a case study as an example, the analysis predicts lighter and lighter loads for a particular wheel set as the "roughest" part of the spiral curve is approached, just prior to derailment. Several possible causes for derailment, including lack of ballast and dynamic effects, are delineated.
- Contributed by the Rail Transportation Division of The American Society of Mechanical Engineers for presentation at the Winter Annual Meeting, San Francisco, California, December 10-15, 1978.
American Society of Mechanical EngineersTwo Park Avenue
New York, NY USA 10016-5990
- Wilson, J F
- Publication Date: 1978-7-20
- Features: Figures; References; Tables;
- Pagination: 8 p.
- TRT Terms: Bearings; Crash risk forecasting; Derailments; Flat cars; Load transfer; Railroad cars; Risk assessment; Spirals; Steering; Superelevation; Train track dynamics
- Old TRIS Terms: Depressed center flat cars; Side bearings
- Subject Areas: Highways; Railroads; Safety and Human Factors;
- Accession Number: 00188632
- Record Type: Publication
- Source Agency: American Society of Mechanical Engineers
- Report/Paper Numbers: 78-WA/RT-13 Conf Paper
- Files: TRIS
- Created Date: Feb 27 1979 12:00AM