MEASUREMENT METHOD FOR THE STRUCTURING OF WHEEL WEAR OF RAIL-BOUND VEHICLES. FINAL REPORT

MAETMETOD FOER STRUKTURERING AV HJULSLITAGE HOS RAELSBUNDNA FORDON

In order to study wear on railway wheels a new method for wear measurements was developed especially adjusted to field measurements and to complex shapes of the subject measured. Maximum measuring error is plus or minus 10 micrometer for railway wheel measurements, resolving value about 1 micrometer. This report presents the development work and alternatives chosen together with the present method. In addition, the aim, carrying out and results from wear test are shortly described. In the new method, the yms-method, the subject measured is moulded in plastic before and after testing. The moulded profile is measured in an imaging-projecting test apparatus with coordinate table and data are recorded on a tape unit. Finally, wear calculations and plotting by means of computer and plotter are carried out. The method gives almost continuous measurement of the wear in a section of the subject measured and comparatively considerable resolution. This makes studies of the effects of various parameters on wheel wear possible. This was not possible by the use of previous methods. The method also is applicable to other objects and areas. By means of this method studies can be carried out for the optimization of structures in view of maintenance costs caused by wear.

  • Corporate Authors:

    National Swedish Board for Technical Development

    Liljeholmsvagen 32 Fack
    S-100 72 Stockholm,   Sweden 
  • Authors:
    • Ekblom, G
  • Publication Date: 1977-9

Language

  • Swedish

Media Info

  • Features: Figures;
  • Pagination: 18 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00183285
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Report/Paper Numbers: STU-Rapport NR764062Monograph
  • Files: ITRD, TRIS
  • Created Date: Oct 31 1978 12:00AM