A nonlinear computer program for Freight Car Response Analysis and Test Evaluation (FRATE) has been developed under the sponsorship of the Federal Railroad Administration. The computer program incorporates a model of a Trailer on Flat Car (TOFC) configuration. Validation of the FRATE/TOFC program is being accomplished through comparison of analysis results to the results of vibration tests performed on a TOFC configuration at the Rail Dynamics in Pueblo, Colo. Lab. Validation criteria include resonant frequency, deflection shape at resonance and amplification of input motions. This paper presents a brief review of the FRATE/TOFC computer program, a summary of TOFC vibration test results and comparisons of test and analysis results. Procedures followed to achieve acceptable agreement between test and analysis are reviewed.

  • Supplemental Notes:
    • For Meeting held November 27-30, 1978.
  • Corporate Authors:

    Society of Automotive Engineers (SAE)

    400 Commonwealth Drive
    Warrendale, PA  United States  15096
  • Authors:
    • Kachadourian, G
    • Tsai, N T
  • Publication Date: 1978

Media Info

  • Features: References;
  • Pagination: 16 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00194877
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Report/Paper Numbers: SAE 781049 Preprint
  • Files: TRIS
  • Created Date: Jul 11 1979 12:00AM