CUSHIONING REQUIREMENTS FOR ADEQUATE LADING PROTECTION

The problem of lading damage is approached from the standpoint of what is required to eliminate coupling impact damage to a critical class of lading under present railroad operating conditions. A series of full-scale exploratory impact tests were conducted in which a wide range of load subdividing and underframe cushion travels were studied using removable bulkheads and an adjustable cushion fixture in the test cars. The results show that to evaluate the lading protection ability of cushioned cars on the basis of the percentage reductions in coupler force or car-body accelerations alone, or because some seemingly high cushion capacity has been provided, can be very misleading when resilient types of lading are considered. Also, when 30 in. of cushion travel are used, the optimum potential of cushioning is realized and load subdividing and other means of securement are unnecessary.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/08992029
• Supplemental Notes:
  • This paper appeared in Anthology of Rail Vehicle Dynamics, Volume 1: Freight Car Impact. The anthology was sponsored by the Rail Transportation Division, ASME. Presented at the Annual Meeting, Atlantic City, N.J., Nov. 29-Dec. 4, 1959.
• Corporate Authors:

  American Society of Mechanical Engineers

  Two Park Avenue
  New York, NY  United States  10016-5990
• Authors:
  • Peterson, W H
• Publication Date: 1971

Media Info

• Features: Figures;
• Pagination: p. 59-70
• Serial:
  • Publication of: ASSOCIATION OF AMERICAN RAILROADS
  • Publisher: Association of American Railroads
  • ISSN: 0899-2029

Subject/Index Terms

• TRT Terms: Couplers; Crashes; Cushioning materials; Freight cars; Friction; Impacts; Loss and damage; Railroad cars; Stresses; Train track dynamics
• Old TRIS Terms: Car impact; Cushioning; Lading protection
• Subject Areas: Railroads; Vehicles and Equipment;

Filing Info

• Accession Number: 00047440
• Record Type: Publication
• Files: TRIS
• Created Date: Nov 14 1976 12:00AM