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1 Jun 1984

Technical Reports

Wheelclimb Derailment Processes and Derailment Criteria

Author
L.M. Sweet, A. Karnel

Subject Facilities & Test Equipment, Track/Train Interactions

Keywords: scale model testing, wheelset dynamics

Abstract: The most widely accepted criterion for wheelclimb derailment defines an upper limit for safe operation on wheel/rail contact forces on the climbing wheel, with the limit varying...

Report Number
DOT/ FRA/ORD-84/05
Office
RRD

1 Sep 1983

Technical Reports

Analytic Studies of the Relationship Between Track Geometry Variations and Derailment Potential at Low Speeds

Author
Fred B. Blader

Subject Track/Train Interactions

Keywords: Computer Simulation, Mathematical Dynamic Curving, Hunting, Wheel Rail Forces, Profiles, Track Safety Standards

Abstract: This report describes analytical studies carried out to define the relationship between track parameters and safety from derailment. Problematic track scenarios are identified...

Report Number
FRA/ORD-83/16
Office
RRD

1 May 1983

Technical Reports

Parametric Studies on Lateral Stability of Welded Rail Track

Author
Federal Railroad Administration; G. Samavedem; A. Kish; D. Jeong

Subject Track, Tracks & Structures, Track/Train Interactions

Keywords: Track buckling, buckling, welded track

Abstract: Thermal buckling of railroad tracks in the lateral plane is an important problem in the design and maintenance of continuous welded rails (CWR). The severity of the problem is...

Report Number
DOT/FRA/ORD-83/07
Office
RPD-10

1 May 1983

Technical Reports

Determination of Residual Stresses in Rails

Author
Federal Railroad Administration; J.J. Groom

Subject Fatigue Management, Track, Tracks & Structures, Track/Train Interactions

Keywords: Fatigue, Rail stress

Abstract: A destructive sectioning technique for measuring the complete three-dimensional residual stresses in a rail cross section was developed. The technique was applied to four tangent...

Report Number
DOT/FRA/ORD-83/05
Office
RRD

1 Apr 1983

Technical Reports

Control of Wheel/Rail Noise and Vibration

Author
P. J. Remington, N. R. Dixon, L. G. Kurzweil, C. W. Menge, J. D. Stahr, and L. E. Wittig

Subject Track/Train Interactions, Best Practices

Keywords: Rail Grinding; Wheel Truing

Abstract: This report presents the results of a program to develop and evaluate techniques for the control of wheel/rail noise in urban rail transit systems. The first part of the program...

Report Number
DOT-TSC-UMTA-82-S7
Office
RRD