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Highspeed Freight Train Resistance: Its Relation to Average Car Weight

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  • Creators:
    Tuthill, John Kline
  • Corporate Creators:
    University of Illinois at Urbana-Champaign
  • Subject/TRT Terms:
  • Resource Type:
    Tech Report
  • Geographical Coverage:
    United States
  • Corporate Publisher:
    University of Illinois at Urbana-Champaign
  • Abstract:
    This bulletin presents values of freight train resistance at train speeds of 40 to 70 mi. per hr. The principal data were obtained in 1937 during a series of locomotive tests on the main lines of the Illinois Central system. Many low-speed train resistance values were calculated in order to check the results given in Bulletin No. 43 of the Engineering Experiment Station. The final results of this research are given in the form of a series of curves -Figs. 4 and 5 on pages 28 and 29; in the form of Equations (1)-(12) on pages 27 and 30; and also in Tables 3 and 37 on pages 30 and 77 for anyone desiring to plot large graphs in order to read train resistance values more accurately. This bulletin contains no description of the railway dynamometer car used in the investigation, since a complete history of University of Illinois dynamometer cars may be found in Circular No. 52, "The Railroad Dynamometer Car of the University of Illinois-Illinois Central Railroad," a publication of the Engineering Experiment Station. That circular describes in detail most of the important pieces of equipment used in a dynamometer car for obtaining train resistance values or for locomotive testing and tonnage ratings, sets forth the method of calibrating some of the instruments, and explains the manner in which wind direction and velocity measurements are made.
  • Content Notes:
    Citation: Tuthill, J K., High Speed Freight Train Resistance in Relation to Average Car Weight, University of Illinois Experiment Station, Bulletin No. 376, Urbana, Illinois, January 1948.
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    PDF
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    urn:sha-512:9efea856c53572e133d7a3e00aeb59432cd2772ce05f018532f5fdda92d0826ee4afe7afff0b330641a7ee38099f69832dc79b1f492d05bcbd47662e90f67d16
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