MODELLING OF RAILWAY NOISE SOURCES WITH APPLICATIONS ON SWEDISH TRAINS

In order to be able to apply point source propagation theory to the propagation of railway noise it is necessary to describe the train/track system as a number of point sources. In this report different source models will be tested on Swedish trains. The basic idea behind most tests has been to study the sound propagation pattern of real trains. By combining advanced sound propagation theory with different source models and by comparing calculations with measurements in several receiver positions it is possible to evaluate assumptions with respect to number and position of the point sources selected to describe the noise emission of the train. Special features which have been studied using measurements and simulations are the acoustic properties of the track bed, rail damping, the directivity, the time history during pass-by and the height distribution of sources.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/917848894X
• Corporate Authors:

  SP Swedish National Testing and Research Institute, Sweden

  Borås,   Sweden 
• Authors:
  • JONASSON, H G
  • Zhang, X
• Publication Date: 2001

Language

• English

Media Info

• Pagination: 68 p.

Subject/Index Terms

• TRT Terms: Acoustic properties; Damping (Engineering); Noise; Noise sources; Pollution; Railroad tracks; Sound transmission
• Geographic Terms: Sweden
• Subject Areas: Environment; Railroads;

Filing Info

• Accession Number: 00961544
• Record Type: Publication
• ISBN: 917848894X
• Report/Paper Numbers: SP-RAPP-2001:40
• Files: TRIS
• Created Date: Aug 13 2003 12:00AM