USAF Bioenvironmental Noise Data Handbook: D-4 Test Stand, Aircraft Hydraulic System,

Abstract

The D-4 Hydraulic Test Stand is an electric motor-driven unit designed to test aircraft hydraulic systems. This report provides measured data defining the bioacoustic environments produced by this unit operating inside a large aircraft hangar at normal rated/loaded conditions. Near-field data are reported for 37 locations in a wide variety of physical and psychoacoustic measures: overall and band sound pressure levels, C-weighted and A-weighted sound levels, preferred speech interference level, perceived noise level, and limiting times for total daily exposure of personnel with and without standard Air Force ear protectors. Refer to Volume 1 of this handbook, USAF Bioenvironmental Noise Data Handbook, Vol. 1: Organization, Content and Application, AMRL-TR-75-50(1) 1975, for discussion of the objective and design of the handbook, the types of data presented, measurement procedures, instrumentation, data processing, definitions of quantities, symbols, equations, applications, limitations, etc. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1976
Accession Number
ADA048952

Entities

People

  • Nick A. Farinacci

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Air Platforms
  • Biomedical
  • Space

DTIC Thesaurus Topics

  • Acoustic Propagation
  • Air Force
  • Air Force Facilities
  • Aircrafts
  • Barometric Pressure
  • Biomedical Research
  • Data Processing
  • Electric Motors
  • Environment
  • Far Field
  • Ground Support
  • Ground Support Equipment
  • Hydraulic Tests
  • Measurement
  • Near Field
  • Sound Pressure
  • Test Stands

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