BEHAVIOUR OF TRACTIVE UNITS AT SKIDDING WITH DIFFERENT KINDS OF PROPULSION AS A DYNAMICAL AND A STATISTICAL PROBLEM

The present-day trend of all Railway authorities toward higher power to reduce travel times has made a well-known problem acute: that of slipping. In addition present changes in the technology of traction as well as operational requirements lend special importance to this question. Among the most significant of these innovations are: use of shunt and three-phase motors in the drive unit, development of newer mechanical transmission systems, which incorporate a hollow shaft, mounted elastically between the motor and the axle, and whose mass can no longer be neglected, higher dynamic wheel loading, wheel diameter made smaller for the purpose of reducing wheel-set mass which possesses also decreased friction, suspension of the axle in the bogie in all degrees of freedom, connection of up to 6 axles by a common Cardan shaft, tandem operation as well as operation from the other end of the train, so that the engine driver is not able to observe slipping in the remotely controlled engine and to take the required action. The author discusses the effects of these innovations on the problem of slipping.

Media Info

  • Features: References;
  • Pagination: p. 369-387

Subject/Index Terms

Filing Info

  • Accession Number: 00190298
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: May 26 1979 12:00AM