BRAKING DUTY IN NORTH AMERICAN FREIGHT TRAIN SERVICE AND EFFECTS ON BRAKE EQUIPMENT, BRAKE SHOES AND WHEELS

Changes in train consist makeup brought about by modern types of larger and high capacity freight cars have had noticeable effects on the type and amount of train braking necessary for safe and adequate train speed and slack control. This paper is the result of recent investigations into the amount of braking duty, the intensity and duration of braking horsepower on car and locomotive wheels. It also examines effects of forces resulting from braking and slack actions on train operations over all types of terrain common to North America. Trends and future projections are examined from an operations engineering point of view.

• Supplemental Notes:
  • Contributed by the Rail Transportation Division of ASME for presentation at the IEEE-ASME Joint Railroad Conference, St. Paul, Minnesota, April 11-13, 1978.
• Corporate Authors:

  American Society of Mechanical Engineers

  Two Park Avenue
  New York, NY  United States  10016-5990
• Authors:
  • Blaine, D G
  • Grejda, F J
  • Kahr, J C
• Publication Date: 1978

Media Info

• Features: Figures; References; Tables;
• Pagination: 20 p.

Subject/Index Terms

• TRT Terms: Brake shoes; Brakes; Braking performance; Energy conservation; Freight trains; Fuel consumption; Thermal stresses; Train makeup; Train operations; Wheels
• Old TRIS Terms: Brake applications; Grade operations; Slack action; Train performance; Wheel thermal stresses
• Subject Areas: Energy; Environment; Freight Transportation; Railroads; Vehicles and Equipment;

Filing Info

• Accession Number: 00173785
• Record Type: Publication
• Source Agency: American Society of Mechanical Engineers
• Report/Paper Numbers: 78-RT-9 Conf Paper
• Files: TRIS
• Created Date: Apr 26 1978 12:00AM