Although conventional methods of brake analysis are adequate for general design purposes they ignore shoe and drum distortion and so give inaccurate prediction of brake torque. Advanced designs require a more accurate technique such as the finite element method described. The method is adapted to deal with the case of a friction interface and uses a model of shoe and brake lining to determine drum distortion and also thermal effects. Material properties used in the model to represent the steel shoe and friction material are detailed. The work carried out also shows that different types of pressure distribution are compatible with each other. The sinusoidal pressure curve, the uniform distribution, the cubic and u-shaped pressure curves are all design aspects of the drum brake. Which form applies at any instant depends on flexural and thermal deflections as well as the nature of the interface contact. (TRRL)

  • Availability:
  • Corporate Authors:

    Mechanical Engineering Publications Limited

    P.O. Box 24, Northgate Avenue
    Bury St Edmunds, Suffolk IP32 6BW,   England 
  • Authors:
    • DAY, A J
    • Harding, PRJ
    • NEWCOMB, T P
  • Publication Date: 1980-9-11

Media Info

  • Features: Figures; Tables;
  • Pagination: p. 21-22
  • Serial:
    • Volume: 5
    • Issue Number: 5
    • Publisher: Institution of Mechanical Engineers
    • ISSN: 0307-6490

Subject/Index Terms

Filing Info

  • Accession Number: 00330478
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD, TRIS
  • Created Date: Aug 15 1981 12:00AM