In passenger accommodations of coaches the noise level must not exceed 65 dB (A) for first class and 70 dB (A) for second class. It is provable by means of the statistic energy analysis of the sound transmission, that at middle and high frequencies the air-borne noise and at low frequencies the structure-borne noise dominates. For the coach type Y is shown as an example, that the reduction of the structure-borne noise by nearly 10 dB at f=250 cps by measures at the running gear and its connection to the car body or by a very good noise damping at the car body in the range of the bogies, the influence of the structure-borne noise at deep frequencies is set aside too.

  • Corporate Authors:

    VEB Autobahnbaukombinat

    Templinestrasse 19
    Potsdam,   Germany 
  • Authors:
    • Toepfer, K
  • Publication Date: 1980-5


  • German

Media Info

  • Pagination: p. 193-194
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00319980
  • Record Type: Publication
  • Source Agency: British Railways
  • Files: TRIS
  • Created Date: Nov 29 1980 12:00AM