Development of Continuous Measurement Equipment for Angle of Attack and Results of Measurements

One of the dominant parameters that determines curving performance of railway rolling stock is angle of attack - the tangential angle on the contact point between wheels and rails - and it particularly affects lateral force. However, on running rail cars it is difficult to measure angle of attack. There have been only a few examples of measurements where sufficient accuracy was gained, even though many methods of continuously measuring angle of attack have been attempted. The authors have developed a system that can continuously measure changes in the angle of attack of a vehicle during running, using compact, high performance sensors that have become affordable due to the recent sensor technology improvement, as a part of work to clarify flange climb derailment. Test runs using that system were also conducted. Results prove that the system is usable to clarify flange climb derailment by demonstrating that the system could detect and measure the attack angle characteristics of rolling stock running on a curve track or a turnout.

• Record URL:
  http://www.jreast.co.jp/e/development/tech/pdf_19/Tec-19-46-49eng.pdf
• 
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/51815943
• Authors:
  • Kataori, Akinobu
  • Doi, Ken-ichi
  • Iijima, Hitoshi
  • Momosaki, Shuji
  • Horioka, Kenji
• Publication Date: 2011

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; Photos; References;
• Pagination: pp 46-49
• Serial:
  • JR East Technical Review
  • Issue Number: 19
  • Publisher: East Japan Railway Culture Foundation
  • ISSN: 1347-8907
  • Serial URL: https://www.jreast.co.jp/e/development/tech/

Subject/Index Terms

• TRT Terms: Coefficient of friction; Curved track; Derailments; Flanges; Measurement; Railroad safety; Rolling stock; Train track dynamics
• Subject Areas: Design; Railroads; Safety and Human Factors; I22: Design of Pavements, Railways and Guideways; I82: Accidents and Transport Infrastructure;

Filing Info

• Accession Number: 01370058
• Record Type: Publication
• Files: TRIS
• Created Date: May 16 2012 3:05PM