The work on the theory of pulse propagation, which goes back to the ideas of d'Alembert (1717-1783), allows the course of pulses and waves along a wire and in a catenary system to be described. The reflections at inhomogeneities in mass distribution and the increase in the contact force of the pantograph when it reaches such an inhomogeneity are of decisive importance in attaining a stable condition. By way of detailed calculations of the contact force of the pantograph when moving along the standard over-head contact lines Re 100 and Re 160 as examples of the application, it was possible to provide a store of values for every case which allows the calculation to be compacted to a statistical statement . A quadratic evaluating quality criterion which takes as its measure the sum of the deviations of the contact force from the static mean value over the speed shows a characteristic behaviour of this sum for each overhead line, and also allows the variations in individual parameters, whether material data or wire forces or the catenary system geometry, to be included in the quantitative evaluation. A beginning has been made with the examples given in the article, but there is a need to improve the method with which the system of simultaneous partial differential equations describes the dynamic behaviour of the catenary system so that the computing times can be shortened.

  • Corporate Authors:

    Hestra Verlag

    Holzhofallee 33, Postfach 4244
    6100 Darmstadt 1,   Germany 
  • Authors:
    • Bopp, K
  • Publication Date: 1980-3


  • German

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Filing Info

  • Accession Number: 00316563
  • Record Type: Publication
  • Source Agency: British Railways
  • Files: TRIS
  • Created Date: Sep 16 1980 12:00AM