STEERING A FLEXIBLE RAILWAY TRUCK ON CURVED TRACK
This paper gives a linear analysis for the steady motion of a flexible two-axle railway truck on curved track. Most existing truck designs are too rigid to be self-steering, but provided that the primary suspension is sufficiently flexible, it is shown that a truck can negotiate main line curves without slipping or flange contact. Results are obtained for the maximum rolling displacement of the wheelsets (the tracking error), Fig. 8, and the minimum radius of curvature for no slipping, Fig. 10, expressed as a function of the suspension stiffness. It is shown that lateral loads due to superelevation deficiency have only a small effect on the motion of the truck, which is mainly determined by creep forces arising from the geometric inability of the four wheels to roll freely on curved track.
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Supplemental Notes:
- This paper appeared in Anthology of Rail Vehicle Dynamics, Volume 2: Effects of Train Action and Rail Car Vibration. The anthology was sponsored by the Rail Transportation Division, ASME. Presented at the Joint Railroad Conference, Montreal, Quebec, Canada, April 15-16, 1969.
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Corporate Authors:
American Society of Mechanical Engineers
Two Park Avenue
New York, NY United States 10016-5990 -
Authors:
- NEWLAND, D E
- Conference:
- Publication Date: 1971
Media Info
- Features: Figures; References;
- Pagination: p. 215-226
Subject/Index Terms
- TRT Terms: Curved track; Errors; Freight cars; Tracking systems; Train track dynamics; Two axle trucks
- Uncontrolled Terms: Lateral dynamics
- Old TRIS Terms: Tracking error
- Subject Areas: Railroads; Vehicles and Equipment;
Filing Info
- Accession Number: 00047430
- Record Type: Publication
- Report/Paper Numbers: 69-RR-5 Paper
- Files: TRIS
- Created Date: Nov 14 1973 12:00AM