INVESTIGATION OF THE TRUCK HUNTING INSTABILITY PROBLEM OF HIGH-SPEED TRAINS

The problem of truck hunting instability and the design implications for high-speed trains were investigated. Linearized theoretical analyses were made to identify the most important design parameters for speeds of 125 to 200 mph. Truck wheelbase, truck mass, wheel coning ratio, and springs to oppose yaw and transverse motions of the truck relative to the car body - all have large effects on the critical speed for secondary hunting instability. It appears probable that light-weight passenger cars could be designed for stable operation at speeds considerably in excess of 200 mph.

• 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 2: Effects of Train Action and Rail Car Vibration. The anthology was sponsored by the Rail Transportation Division, ASME. Presented at the Sequicentennial Forum on Transportation Engineering, New York, N.Y., Aug. 28-30, 1967.
• Corporate Authors:

  American Society of Mechanical Engineers

  Two Park Avenue
  New York, NY  United States  10016-5990
• Authors:
  • Law, E H
• Publication Date: 0

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: p. 177-188
• Serial:
  • Publication of: ASSOCIATION OF AMERICAN RAILROADS
  • Issue Number: 0
  • Publisher: Association of American Railroads
  • ISSN: 0899-2029

Subject/Index Terms

• TRT Terms: High speed rail; Hunting (Dynamics); Passenger cars; Train track dynamics; Trucks; Vehicle dynamics
• Subject Areas: Motor Carriers; Railroads; Vehicles and Equipment;

Filing Info

• Accession Number: 00047426
• Record Type: Publication
• Files: TRIS
• Created Date: Nov 14 1976 12:00AM