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Category Scope

71 Acoustics

Includes sound generation, transmission, and attenuation. For noise pollution see 45 Environment Pollution. For aircraft noise see also 02 Aerodynamics; and 07 Aircraft Propulsion and Power.

Definition

Acoustics – The study of sound, including its production, transmission, and effects. NASA Thesaurus, Washington, DC: National Aeronautics and Space Administration. Dictionary of Technical Terms for Aerospace Use. Wm. H. Allen, ed., 1965. NASA SP-7.

NASA Interest

Exhaustive Interest : Acoustic theory, noise generation, sound attenuation, and related phenomena as they apply to aerospace equipment and vehicles and their operating environment. For specific applications see 02 Aerodynamics; 05 Aircraft Design, Testing, and Performance; 07 Aircraft Propulsion and Power; 15 Launch Vehicles and Launch Operations; 18 Spacecraft Design, Testing, and Performance; and 20 Spacecraft Propulsion and Power.

Selective Interest : Noise generation, sound attenuation, and other acoustic phenomena related to other means of transportation, manufacturing, and construction with potential aerospace applications.

Negative Interest : Noise generation, sound attenuation, and acoustic phenomena with no potential aerospace application.

 

Input Subjects of Specific Interest

  • acoustic scattering
  • acoustic theory
  • acoustics (general)
  • aeroacoustics
  • aerodynamic noise (general)
  • Doppler effect (acoustics)
  • noise attenuation
  • noise generation
  • noise measurement
  • noise propagation
  • noise reduction (general)
  • sodar (theory and techniques)
  • sonic boom (theory)
  • sound absorption
  • sound attenuation
  • sound generation
  • sound generation in ducts
  • sound propagation
  • sound transmission
  • surface acoustic wave devices (theory)
  • ultrasonic applications
  • ultrasonic theory
  • underwater acoustics
  • wave propagation (acoustic)