This paper presents the wheel-rail relationship in a simple form for the understanding of the action of a radially steerable wheelset located in a truck. The magnitude of the adhesion values can be allowed for with regard to prevailing rail conditions while the tire profile can be conical, hollow or cylindrical. The small angle between the plane of the wheel and the tangential plane to the rail is of great importance, both on straight track and in curves, since it determines the magnitude of the longitudinal as well as lateral forces between wheel and rail which are, in turn, determined by the contact area and the prevailing adhesion values. Since all forces acting upon the truck must be in equilibrium, this determines the direction of the motion and the position of the truck in curves. A few trucks with carbody-steered wheelsets are dealt with to illustrate the relevant points.

  • Supplemental Notes:
    • Contributed by the Rail Transportation Division of the American Society of Mechanical Engineers for presentation at the Winter Annual, Meeting, Chicago, Illinois, November 16-21, 1980.
  • Corporate Authors:

    American Society of Mechanical Engineers

    Two Park Avenue
    New York, NY  United States  10016-5990
  • Authors:
    • Liechty, R
  • Publication Date: 1980

Media Info

  • Features: Figures; References;
  • Pagination: 7 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00324449
  • Record Type: Publication
  • Report/Paper Numbers: 80-WA/RT-10 Conf Paper
  • Files: TRIS
  • Created Date: Feb 6 1981 12:00AM