Accession Number:

ADA048952

Title:

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

Descriptive Note:

Technical rept.,

Corporate Author:

AEROSPACE MEDICAL RESEARCH LAB WRIGHT-PATTERSON AFB OHIO

Personal Author(s):

• Farinacci,Nick A.

Report Date:

1976-12-01

Pagination or Media Count:

18.0

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 ratedloaded 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-75-501 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

Descriptors:

• *GROUND SUPPORT EQUIPMENT
• *NOISE POLLUTION
• *TEST STANDS
• *BIOACOUSTICS
• *HYDRAULIC TESTS
• AIRCRAFT MAINTENANCE
• PERFORMANCE(HUMAN)
• TABLES(DATA)
• EXPOSURE(PHYSIOLOGY)
• HANDBOOKS
• ACOUSTIC DATA
• SOUND PRESSURE
• NEAR FIELD
• HEARING
• HANGARS
• GROUND CREWS
• EAR PROTECTORS
• ELECTRIC MOTOR NOISE

Subject Categories:

• Stress Physiology
• Acoustics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE