NEW KNOWLEDGE ABOUT TRAIN RESISTANCE AT VERY HIGH SPEED. (TESTS WITH THE TGV 001 TRAIN)

A report is given of the considerable program of measurements in connection with the train resistance of fast multiple unit sets which was undertaken as part of the studies, research and tests instituted by the S.N.C.F. (Fench National Railways) in preparation for the projected high speed lines. The results obtained enabled the performance and energy consumption calculations to be approached on a firm basis. The program comprised the following stages. The first stage was the measurement on the line, using the experimental TGV 001, of the overall resistance to motion on level tangent track as a function of speed, and the analysis of this resistance into its components, in particular the aerodynamic drag which preponderates at high speeds. Next was made the determination of the aerodynamic forces for formations varying from two to ten vehicles utilizing models of the TGV in the wind tunnel. Finally there was a comparison of measurements on the full scale TGV 001 with those made on the five-vehicle model and derivation of the values of drag for service sets expressed in general formulas taking account of the effect of the main geometrical dimensions of the sets.

  • Corporate Authors:

    Federation des Industries Ferroviaires

    12 rue Bixio
    75007 Paris,   France 
  • Authors:
    • Bernard, M
  • Publication Date: 1975

Media Info

  • Pagination: p. 31-36
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00129093
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Feb 4 1976 12:00AM