OPTIMIZING RAILROAD FREIGHT CAR TRUCK SUSPENSION SYSTEMS HAVING COULOMB DAMPING
This paper describes the design process followed in developing a 100 ton freight car truck suspension system having coulomb damping. Classical linear vibration analysis was used for the conceptual design phase. Within the constraint placed upon truck suspension systems, a constant damping parameter, i.e., the ratio of friction force to static force imparted by the base, for all load conditions was established as a design goal. Optimization of the actual design parameters and comparison to existing truck suspensions was accomplished using the latest vehicle model developed by the AAR/TTD.
- Contributed by the Rail Transportation Division of ASME for presentation at the Winter Annual Meeting, Atlanta, Georgia, November 27-December 2, 1977.
American Society of Mechanical EngineersTwo Park Avenue
New York, NY United States 10016-5990
- Bullock, R L
- Cooley, D B
- Publication Date: 1977
- Features: Appendices; Figures; References; Tables;
- Pagination: 6 p.
- TRT Terms: Analysis; Damping (Physics); Design; Freight cars; Ride quality; Service life; Spring; Suspension systems; Trucks; Vehicle components; Vehicle design; Vehicle dynamics
- Uncontrolled Terms: Design criteria; Performance analysis
- Old TRIS Terms: Analytical techniques; Freight car dynamics
- Subject Areas: Design; Motor Carriers; Railroads; Vehicles and Equipment;
- Accession Number: 00168014
- Record Type: Publication
- Source Agency: American Society of Mechanical Engineers
- Report/Paper Numbers: 77-WA/RT-6 Conf Paper
- Files: TRIS
- Created Date: Jan 30 1978 12:00AM