Sound Analysis of U.S.S. S-20

Abstract

Some 1,000 quantitative measurements of the intensity of propeller noises of the S-20 were made under different conditions of water, speed, range, and depth of submergence to determine the effect of: (a) Covering the propellers with rubber by two different methods. (b) Insulating the starboard motor and reduction gear with compressed felt. From a statistical treatment of the large quantity of data, it is concluded that on the average: (a) Covering the propellers with rubber increased the noise. (b) The anodic covering caused less noise than the vulcalock type.

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Document Details

Document Type
Technical Report
Publication Date
Sep 25, 1935
Accession Number
AD1149355

Entities

People

  • E. B. Stephenson

Organizations

  • United States Naval Research Laboratory

Tags

DTIC Thesaurus Topics

  • Coverings
  • Gears
  • Intensity
  • Measurement
  • Noise
  • Propeller Noise
  • Propellers
  • Reduction Gears

Readers

  • Acoustics.
  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Naval Architecture and Marine Engineering.

Technology Areas

  • Microelectronics
  • Microelectronics - Microelectromechanical Systems