LABORATORY SIMULATION OF WHEEL AND RAIL CONTACT RELATED PARAMETERS

This paper presents techniques and limitations of simulation of wheel and rail in laboratory conditions. Adhesion, creep, contact stress, plastic flow, wear and surface roughness can be simulated in the laboratory. Constant adhesion machines are recommended for good simulation. Size effects are shown to be important for machine design. A contact track angle is defined as an important parameter for determining the degree of validation of a laboratory test. Two types of laboratory simulations, called Hertzian simulation and Geometrical simulation are comparatively discussed along with the IIT--GMEMD Wheel Rail Simulation Facility. Contact stresses and dimensions have been calculated for various U.S. freight cars and locomotives. Simulations of these parameters has been achieved for both Hertzian and Geometrical simulations. Results of calculations for field and laboratory parameters are tabulated and also given in nomographic form. It is shown that good simulation of wheel and rail in laboratory is quite feasible within certain test limitations.

  • Corporate Authors:

    American Railway Engineering Association

    2000 L Street, NW
    Washington, DC  United States  20036
  • Authors:
    • Kumar, S
    • Rajkumar, B R
  • Publication Date: 1980-9

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 1-20
  • Serial:
    • AREA BULLETIN
    • Volume: 82
    • Issue Number: 679
    • Publisher: American Railway Engineering Association

Subject/Index Terms

Filing Info

  • Accession Number: 00323219
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Feb 6 1981 12:00AM