HARMONIC ROLL SERIES. VOLUME 4: TORSIONAL AND FLEXURAL CAR STIFFNESS CHARACTERISTICS

This phase of the Track Train Dynamics Program determined experimentally the torsional and flexural rigidity of three box cars, one covered hopper car and one flat car. Shorter cars displayed a larger value of torsional rigidity than the longer ones. The piggyback flat car was the least rigid. The unibody construction of the covered hopper proved to be the stiffest of cars tested. Recommendations are made about instrumentation for future cars to be tested.

• Supplemental Notes:
  • This report represents contributions by ACF Industries/Amcar Division (Part 1) and Pullman Incorporated/Pullman-Standard Division (Part 2) to this phase of the AAR-RPI-FRA-TDA Track Train Dynamics Program.
• Corporate Authors:

  Association of American Railroads Research Center

  3140 South Federal Street
  Chicago, IL  United States  60616

  Federal Railroad Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590

  Railway Progress Institute

  801 North Fairfax Street
  Alexandria, VA  United States  22314

  Transport Canada Research and Development Centre

  1000 Sherbrooke Street, West, P.O. Box 549
  Montreal, Quebec H3A 2R3,   Canada 
• Publication Date: 0

Media Info

• Features: Figures; Tables;
• Pagination: 56 p.

Subject/Index Terms

• TRT Terms: Flexure; Freight cars; Instrumentation; Motor vehicle bodies; Stiffness; Tests; Torsion; Train track dynamics; Vehicle design
• Old TRIS Terms: Car body; Freight car design
• Subject Areas: Design; Railroads;

Filing Info

• Accession Number: 00153358
• Record Type: Publication
• Source Agency: Association of American Railroads
• Report/Paper Numbers: R-184
• Files: TRIS, USDOT
• Created Date: Jun 17 1977 12:00AM