TECHNICAL DOCUMENTATION, DETAILED VERTICAL TRAIN STABILITY MODEL

This report represents the technical manual documentation for the Detailed Vertical Train Stability Model. The longitudinal dynamic forces during train "run-in" conditions can be large. They can cause car body pitching and vertical bounce motions. When such motions become severe, they can result in vertical coupler disengagement and/or car body separation from the trucks. Such undesirable vertical motions increase equipment failures, damage the lading and may cause derailments resulting in loss of revnue and human life. The Detailed Vertical Train Stability Model and the computer program were developed to study the dynamic forces and motions of a train consist in the vertical plane parallel to the rails. It offers an analytical tool for investigating train handling and train makeup procedures to evaluate possible dangerous conditions like center plate or coupler separation. The present documentation is for the Version I of the program.

• Corporate Authors:

  Association of American Railroads Research Center

  3140 South Federal Street
  Chicago, IL  United States  60616
• Authors:
  • Raidt, J B
  • Shum, K L
  • Martin, G C
  • Garg, V K
• Publication Date: 1977-2

Media Info

• Features: Figures;
• Pagination: 45 p.

Subject/Index Terms

• TRT Terms: Couplers; Dislocation (Geology); Dynamics; Force; Freight cars; Mathematical models; Structural plates; Train makeup; Train operations; Train track dynamics; Vehicle dynamics
• Uncontrolled Terms: Longitudinal forces; Vertical displacement; Vertical dynamics
• Old TRIS Terms: Center plates; Freight car dynamics; Slack action; Train parting
• Subject Areas: Geotechnology; Railroads;

Filing Info

• Accession Number: 00157697
• Record Type: Publication
• Source Agency: Association of American Railroads
• Report/Paper Numbers: R-261
• Files: TRIS
• Created Date: Aug 15 1977 12:00AM