A STUDY ON THE DERAILMENT OF TWO-AXLE FREIGHT CAR DUE TO INTERACTION BETWEEN TRACK AND VEHICLE -- MECHANISM OF THE PHENOMENON AND FACTORS AFFECTING THE SAFETY

By numerical analysis the author clarified cause and mechanism of the so-called "interactional derailment" of the two-axle freight car, the type of derailment without apparent defects of the car and the track. The key to the solution is a newly-devised simulation model. The essential point of the revealed phenomenon is that, under some practical conditions, a few cycles of excitation of the lateral vibration of a car can cause the loss of contact between the wheel tread and the rail surface, releasing a constraint of the whole dynamic system, which, in turn, invites a new motion leading derailment. In many respects the theory shows a good agreement with the investigation of accidents and the result of the derailment test performed by JNR. It is now contributing to the practical measures for safety.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/3127232
• Corporate Authors:

  Ken-yusha, Incorporated

  1-45-6 Hikari-cho, Kokubunji-shi
  Tokyo,   Japan 
• Authors:
  • Matsui, S
• Publication Date: 1973

Media Info

• Features: Figures; References; Tables;
• Pagination: 10 p.
• Serial:
  • Railway Technical Research Institute, Quarterly Reports
  • Volume: 14
  • Issue Number: 4
  • Publisher: Railway Technical Research Institute/Tetsudo Gijutsu Kenkyujo
  • ISSN: 0033-9008
  • Serial URL: http://www.rtri.or.jp/eng/

Subject/Index Terms

• TRT Terms: Derailments; Safety; Train track dynamics; Two axle cars
• Identifier Terms: Nihon kokuyu tetsudo
• Subject Areas: Railroads; Safety and Human Factors;

Filing Info

• Accession Number: 00053741
• Record Type: Publication
• Source Agency: Railway Technical Research Institute
• Report/Paper Numbers: Quart Rpt
• Files: TRIS
• Created Date: Apr 26 1974 12:00AM