NONLINEAR STABILITY AND TRACKING OF RAIL PASSENGER TRUCKS

An analysis of a rail passenger truck which includes nonlinear wheel/rail geometry and creep forces is formulated for determining truck stability and response to rail alignment irregularities. Digital simulation studies using the analysis have illustrated the large amplitude flange to flange response which occurs in operation of a truck below critical speed on a track with significant alignment irregularity, of a truck near critical speed and excited by irregularities and of a truck operated obove critical speed. The variations in temporal waveform, probability density and power spectral density of vehicle motions for these conditions are described. The influence of vehicle suspension parameters and wheel/rail geometry on truck stability and tracking ability is discussed and related to operating conditions.

• Supplemental Notes:
  • Presented at ASME Meetings, 15-20 November 1981.
• Corporate Authors:

  American Society of Mechanical Engineers

  Two Park Avenue
  New York, NY  United States  10016-5990
• Authors:
  • Horak, D
  • Wormley, D N
• Publication Date: 1981-11

Media Info

• Features: References;
• Pagination: 10 p.
• Serial:
  • ASME Transactions
  • Publisher: American Society of Mechanical Engineers

Subject/Index Terms

• TRT Terms: Alignment; Car trucks (Railroads); Critical velocity; Motor vehicles; Passenger cars; Railroad rails; Railroad tracks; Rolling contact; Rolling stock; Simulation; Stability (Mechanics); Suspension systems; Traction; Train track dynamics; Vehicle design; Wheels
• Old TRIS Terms: Critical speed; Passenger car design; Rail passenger trucks; Track alignment
• Subject Areas: Design; Public Transportation; Railroads; Vehicles and Equipment;

Filing Info

• Accession Number: 00361875
• Record Type: Publication
• Source Agency: Engineering Index
• Report/Paper Numbers: 81-WA/DSC-8 Conf Paper
• Files: TRIS
• Created Date: Jul 30 1982 12:00AM