COMBINED THERMAL AND MECHANICAL ANALYSIS OF DRUM BRAKES

The frictional heat generated during braking is included in the full analysis of a commercial vehicle drum brake, avoiding artificial heat partitioning by the use of a novel technique for the dynamic simulation of heat transfer at the friction interface. The effects of lining wear, empirically related to local values of surface temperature and pressure, together with thermo-elastic effects, are taken account of in the calculation of interface pressure distributions and consequent brake performance. Analyses have been completed using two-dimensional finite element meshes which model the combined assembly of brake shoes, linings and drum. These have been validated by comparisons between measured and calculated brake performance, and by observations of rubbing contact pattern. (Author)

• Supplemental Notes:
  • Proceedings title, "Transport Engineering."
• 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
• Conference:
  • Institution of Mechanical Engineers, Proc Part D
• Publication Date: 1984

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 287-294
• Serial:
  • Volume: 198
  • Issue Number: 15

Subject/Index Terms

• TRT Terms: Brake linings; Brakes; Braking; Buses; Coefficient of friction; Economic efficiency; Finite element method; Friction; Friction brakes; Heat; Interfaces; Mechanics; Pressure; Simulation; Surfaces; Temperature; Trucks; Vehicle design; Wear
• Uncontrolled Terms: Efficiency
• Old TRIS Terms: Brake systems; Bus design; Friction braking
• ITRD Terms: 1361: Brake; 1874: Braking; 5911: Efficiency; 6490: Finite element method; 5452: Friction; 6743: Heat; 5429: Interface; 1236: Lorry; 5455: Mechanics; 5412: Pressure; 9103: Simulation; 6438: Surface; 6722: Temperature
• Subject Areas: Design; Economics; Highways; Motor Carriers; Public Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00456328
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD, TRIS
• Created Date: Jul 31 1986 12:00AM