Technical Reports

Effect of Hollow-Work Wheels on Wheel and Rail Interaction with North American Freight Cars

  • 01
  • Nov
  • 2002
AUTHOR: Kevin Sawley, Russell Walker
SUBJECT: Evaluation
KEYWORDS: Wheel Wear, Vehicle Stability, Lateral Forces, Derailment Risk
ABSTRACT: This report examines the effect that hollow-worn wheels have on wheel and rail interaction for typical North American freight cars on tangent and curved track. Hollow wear tends to reduce the speed of which hunting starts and can increase the rail roll moment. However, hollow wear is not the sole controller of wheel and rail interaction. Other important factors include rail shape, wheel flange wear, track gages, and wheel back-to-back spacing.