ON THE PREDICTION OF WAYSIDE NOISE LEVELS FOR HIGH-SPEED RAILWAY VEHICLES

The relative contributions of aerodynamic and wheel/rail noise to railway wayside noise levels are not well understood. Methods for predicting these contributions discussed in this paper include an equation for turbulent boundary layer noise (the minimum wayside noise), an empirical formula for total aerodynamic noise based on airframe noise studies, and the Peters equation for wheel/rail interaction noise. Comparisons are made between predicted and measured noise levels for a buoyant vehicle, the Linear Induction Motor Research Vehicle (LIMRV), and a magnetically levitated vehicle. Analysis of these results indicates that aerodynamic fluctuations could become the dominant source of wayside noise at train speeds of 240-280 km/h. This prognosis is for new high-speed railway vehicles equipped with disk brakes and other innovations that reduce the wheel/rail noise contribution.

  • Corporate Authors:

    Deutsche Forschangs-u Versuchsanst f Luft-u Raumft

    Institut fuer Turbulenzforschung
    Berlin,   Germany 
  • Authors:
    • King III, W F
  • Publication Date: 1976

Media Info

  • Pagination: 45 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00169595
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: DLR-IB-257-77/6
  • Files: TRIS
  • Created Date: Mar 14 1978 12:00AM