A COMPUTER METHOD FOR CALCULATING DYNAMIC RESPONSES OF NONLINEAR FLEXIBLE RAIL VEHICLES
This paper discusses a digital computer program which is capable of simulating rolling, heaving, pitching, swaying, and yawing motions of rail vehicles in response to track irregularities. Effects of several types of nonlinearities, such as coulomb damping, wheel-rail separation, and nonlinear spring force-deflection characteristics, are taken into account. The method of superposition of normal modes is used to analyze the effects of car body flexibility. The program has been validated by comparison with experimental data. Several examples of the correlation with test data for the rock and roll problem are presented.
- Presented at the 1976 Joint ASME/IEEE Railroad Technical Conference, Chicago, Illinois, April 6-8, 1976.
American Society of Mechanical EngineersTwo Park Avenue
New York, NY USA 10016-5990
- Healy, M J
- Publication Date: 1976-1
- Features: Figures; References;
- Pagination: 9 p.
- TRT Terms: Computer programs; Dynamic tests; Dynamics; Freight cars; Mathematical models; Motor vehicle bodies; Rail (Railroads); Rocking; Rolling; Suspension systems; Train track dynamics; Trucks; Vehicle design; Wheels
- Uncontrolled Terms: Dynamic analysis
- Old TRIS Terms: Car body; Freight car design; Rock and roll
- Subject Areas: Design; Motor Carriers; Railroads; Vehicles and Equipment;
- Accession Number: 00131629
- Record Type: Publication
- Source Agency: American Society of Mechanical Engineers
- Report/Paper Numbers: 76-RT-5
- Files: TRIS
- Created Date: May 14 1976 12:00AM