SOURCE LEVEL MODEL FOR PROPELLER BLADE RATE RADIATION FOR THE WORLD'S MERCHANT FLEET

A model is developed for the acoustic source strength of blade rate line energy produced by single-screw merchant vessels. These source strengths are based on observed cavitation time histories on merchant vessels and on limitations imposed by considerations of propeller design procedures and ship vibration criteria. Relationships are given for the expected value of the blade rate source strength for ships of different lengths. These relationships are based on a small sample of merchant ship characteristics and are exercised for the estimated population of ships at sea. This calculation yields a statistical description of the distribution of source level and frequency of propeller blade rate acoustic energy for the fleet of single-screw merchant vessels.

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  • Corporate Authors:

    Acoustical Society of America

    335 East 45th Street
    New York, NY  USA  10017
  • Authors:
    • Gray, L M
    • Greeley, D S
  • Publication Date: 1980-2

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00329859
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Mar 12 1981 12:00AM