ON THE EFFECT OF TRACK IRREGULARITIES ON THE DYNAMIC RESPONSE OF RAILWAY VEHICLES

The steady state response for models of a six-axle locomotive running on a sinusoidally irregular track has been investigated. Two mathematical models have been set up, a full model for the stationary vehicle in which creep between wheels and rails was neglected, and a full model for the moving vehicle in which creep forces gravity stiffness effects and wheel tread profiles were considered. The use of the generalized method of complex algebra to obtain the steady state response of the railway vehicle components to varying input frequencies was used. The results given in this paper are for the case of sinusoidal lateral track irregularities only, but the method is general enough to allow also for vertical track irregularities. The analysis may be used to check the response of any proposed design for a railway vehicle to economically attractive track irregularities. It may also be used to adjust geometry, spring rates and damping characteristics in order to maximize operating speeds while providing optimum damping for the trucks and body motions.

• Corporate Authors:

  American Society of Mechanical Engineers

  Two Park Avenue
  New York, NY  United States  10016-5990
• Authors:
  • Siddall, J N
  • Dokainish, M A
  • Elmaraghy, W
• Publication Date: 1973-11

Media Info

• Features: References;

Subject/Index Terms

• TRT Terms: Dynamics; Railroad rails; Railroad tracks; Train track dynamics; Vehicle dynamics; Wheels
• Subject Areas: Railroads; Vehicles and Equipment;

Filing Info

• Accession Number: 00056839
• Record Type: Publication
• Source Agency: Engineering Index
• Report/Paper Numbers: N73-WA/RT-1 Paper
• Files: TRIS
• Created Date: Jul 31 1976 12:00AM