The Use of Reflectors to Shape a Sound Field.

Abstract

The use of reflectors to control the distribution of the Sound Pressure Level (SPL) in sonic test chambers is investigated. The goal is to obtain more realistic SPL distributions on the test object. It is concluded that the use of reflectors will not increase the SPL on a test object unless the reflector and test object are in the near field of the sound generators. The results of the study are applied to the Air Force Flight Dynamics Laboratory's (AFFDL) Sonic Fatigue Facility at Wright-Patterson Air Force Base. Design charts are presented that relate predicted SPL distributions to reflector size and positioning. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1971
Accession Number
AD0883946

Entities

People

  • James A. Moore
  • Jerome E. Manning

Organizations

  • BBN Technologies

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Acoustic Fields
  • Acoustic Impedance
  • Acoustic Propagation
  • Acoustic Waves
  • Acoustics
  • Air Force
  • Amplitude
  • Far Field
  • Intensity
  • Near Field
  • Radiation
  • Reflectors
  • Scattering
  • Sonic Fatigue
  • Sound Pressure
  • Sound Waves
  • Waves

Fields of Study

  • Physics

Readers

  • Acoustical Oceanography.
  • Auditory Neuroscience/Auditory Physiology.
  • Fluid Dynamics.