HIGH-SPEED LATERAL STABILITY OF A FREIGHT CAR RELATED TO MODIFICATIONS OF CONVENTIONAL TRUCKS

High speed lateral stability of freight cars is one facet of a truck performance mode requiring improvement in control. A 70-ton (63.6-mt) freight car truck of conventional three-piece design was analyzed and tested on a dynamic simulator leading to recommendations for truck modifications to improve high speed lateral stability. These modifications and other were later field tested with a 70-ton (63.6-mt) freight car to demonstrate the degree of control derived from single as well as multiple changes to the truck. The results are presented in terms of RMS graphs.

• Supplemental Notes:
  • Contributed by the Rail Transportation Division of ASME for presentation at the Winter Annual Meeting, Atlanta, Georgia, November 27-December 2,1977.
• Corporate Authors:

  American Society of Mechanical Engineers

  Two Park Avenue
  New York, NY  United States  10016-5990
• Authors:
  • Andresen, J A
  • Byrne, R
• Publication Date: 1977

Media Info

• Features: Figures; References;
• Pagination: 4 p.

Subject/Index Terms

• TRT Terms: Dampers; Dynamic tests; Freight cars; Hunting (Dynamics); Hydraulic equipment; Mathematical models; Snubbers; Test facilities; Testing; Train track dynamics; Trucks; Vehicle design; Vehicle dynamics; Wheels
• Uncontrolled Terms: Dynamic analysis; Lateral stability
• Old TRIS Terms: Freight car dynamics; Hydraulic dampers; Wheel tread design
• Subject Areas: Design; Motor Carriers; Railroads; Vehicles and Equipment;

Filing Info

• Accession Number: 00168016
• Record Type: Publication
• Source Agency: American Society of Mechanical Engineers
• Report/Paper Numbers: 77-WA/RT-4 Conf Paper
• Files: TRIS
• Created Date: Jan 30 1978 12:00AM