The analytical methods used to synthesize mathematical models of an 80-ton open hopper railroad car are presented in this report. The work described herein was performed as part of the Track-Train Dynamics program by the Analytical Mechanics Section, Martin Marietta Corporation, Denver Division. This effort was directed toward accurately characterizing the dynamic behavior of this specific railcar configuration. In a larger sense, model formulation and solution using the methods detailed here serve as a potential approach to the characterization of other railcar configurations. The report details the formulation of a nonlinear model including the carbody, trucks, and wheel/rail interactions. In particular hunting stability of the railcar was investigated, and analytical results were compared to actual test data. Test/analytical correlation was very good.

Media Info

  • Media Type: Digital/other
  • Features: Figures; References; Tables;
  • Pagination: 54 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00319052
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: FRA/ORD-80/29 Tech Rpt., MCR-80-531
  • Contract Numbers: NAS8-29882
  • Files: TRIS, USDOT
  • Created Date: Sep 16 1980 12:00AM