Wheels slip because the tractive effort or force they are being asked to transmit is more than the prevailing adhesion conditions will permit. Conversely, wheelslide occurs when the braking or retarding force is too great for the adhesion conditions. While those statements might appear simple, the conditions they describe present very real problems. Attempting to solve the problems has taxed the ingenuity of engineers for decades. Many of the details discussed in this article are equally applicable to other forms of transportation, in fact adhesion problems apply to all forms of transport involving the transmission of force via surfaces in contact whether they be rail, road, air (wheel-brake only)--or even pedestrian. A fundamental point which must be borne in mind throughout is that the maximum tractive effort which can be transmitted is the product of the prevailing adhesion factor and the actual adhesive weight.

  • Availability:
  • Corporate Authors:

    Ian Allan Limited

    Terminal House
    Shepperton, Middlesex  England  TW17 8AS
  • Authors:
    • Scott, M
  • Publication Date: 1974-6

Media Info

  • Features: Figures; Photos;
  • Pagination: p. 222-226
  • Serial:
    • Volume: 31
    • Issue Number: 309
    • Publisher: Ian Allan Publishing, Limited
    • ISSN: 0026-8356

Subject/Index Terms

Filing Info

  • Accession Number: 00057340
  • Record Type: Publication
  • Source Agency: Modern Railroads
  • Files: TRIS
  • Created Date: Aug 28 1974 12:00AM