SCALE MODEL EXPERIMENTS ON NOISE REDUCTION BY ACOUSTIC BARRIER OF A STRAIGHT LINE SOURCE

Noise reduction by an acoustic barrier of a straight line source is examined with the aid of scale model experiments. The line source used in these experiments is an incoherent line source mechanically radiating broad band noise. From the experimental results a curve can be deduced which shows a relation between sound attenuation and Fresnel number N. This curve shows values lower than those of Maekawa's data by 3-5 dB, which are presented for a point source. On the other hand, it agrees fairly well with Rathe's experimental results, measured near the tracks of a railway line, and also shows a similar tendency to the curve calculated by Kurze and Anderson for an incoherent line source.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/0003682X
• Corporate Authors:

  Elsevier Publishing Company, Limited

  Rippleside Commercial Estate, Ripple Road
  Barking, Essex,   England 
• Authors:
  • Koyasu, M
  • YAMASHITA, M
• Publication Date: 1973-6

Media Info

• Serial:
  • Applied Acoustics
  • Publisher: Elsevier
  • ISSN: 0003-682X
  • Serial URL: http://www.sciencedirect.com/science/journal/0003682X

Subject/Index Terms

• TRT Terms: Environmental protection; Noise
• Subject Areas: Environment; Railroads;

Filing Info

• Accession Number: 00046886
• Record Type: Publication
• Files: TRIS
• Created Date: Nov 14 1974 12:00AM