EFFECTS OF SPIRAL LENGTH ON REVERSE CURVE NEGOTIATION WITH MINIMUM TANGENT LENGTH FOR SLOW SPEED OPERATION
The effect of spirals in slow speed reverse curve negotiation has been investigated with the Quasi-Static Lateral Train Stability Model. The reverse curves studied are 6, 8, 10, 12 and 14-degrees. The Lateral/Vertical (L/V) ratios for wheel climb and rail rollover and the maximum coupler lateral angles were analysed for each reverse curve. The effect of buff forces on the maximum L/V ratios and coupler lateral angles was also studied for negotiation of reverse curves at slow speeds. The United States Government assumes no liability for the contents of this report or the use thereof.
- Sponsored by Federal Railroad Administration, Washington, D.C.
Chicago, IL United States 60616
- Chang, E H
- Shum, K L
- ABBOTT, R A
- SINGH, S P
- Publication Date: 1978-9
- Features: Appendices; Figures; References;
- Pagination: 64 p.
- TRT Terms: Couplers; Derailments; Force; L/V ratio; Overturning; Rail (Railroads); Spirals; Steering; Train track dynamics
- Uncontrolled Terms: Longitudinal forces
- Old TRIS Terms: Rail overturning; Reverse curves
- Subject Areas: Railroads; Safety and Human Factors;
- Accession Number: 00188114
- Record Type: Publication
- Source Agency: Association of American Railroads Technical Center
- Report/Paper Numbers: AAR Rpt R-309 Tech Rpt.
- Contract Numbers: DOT-FR-64228
- Files: TRIS
- Created Date: Feb 27 1979 12:00AM