Hush House Induced Vibrations at the Arkansas Air National Guard Facility, Fort Smith, Arkansas

Abstract

The T-10 jet engine ground run-up noise suppressor, or Hush House, was designed to reduce the audible effects of jet engine testing on the surrounding community. At lease in part, the noise suppression characteristics of the Hush House are achieved by the transfer of energy from the audible (> 20 Hz) to the infrasonic range (<20 Hz). At some sites these lower frequency emissions have had deleterious effects on the vibro acoustic environment of nearby buildings. This report describes a case study on this problem and demonstrates that existing siting criteria for the Hush House are inadequate; in one case being too stringent and in another case too lax. An acoustic emissions model for the Hush House is proposed based on multiple jet type sources. Keywords: Infrasonics; Aircraft noise; Motion forecasts.

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Document Details

Document Type
Technical Report
Publication Date
Nov 13, 1987
Accession Number
ADA195389

Entities

People

  • James C. Battis

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Sensors

DTIC Thesaurus Topics

  • Acoustic Emissions
  • Acoustic Measurement
  • Acoustics
  • Air National Guard
  • Aircrafts
  • Ambient Noise
  • Construction
  • Fighter Aircraft
  • Frequency Bands
  • Frequency Domain
  • Inertial Measurement Units
  • Jet Engines
  • Measurement
  • National Guard
  • Plastic Explosives
  • Pressure Measurement
  • Test Equipment

Readers

  • Acoustics.
  • Computational Modeling and Simulation
  • Environmental Impact Assessment (EIA) of Proposed Air Force Base Actions.