Accession Number : ADA257152


Title :   Measurement and Evaluation of Blast Overpressure During F-15A Crew Station Vulnerability Assessment Test


Descriptive Note : Final rept Mar-Dec 1991


Corporate Author : ARMSTRONG LAB WRIGHT-PATTERSON AFB OH


Personal Author(s) : Hille, Harald K


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a257152.pdf


Report Date : Dec 1991


Pagination or Media Count : 71


Abstract : From March 1991 to May 1991 blast overpressures were measured from 21 different projectiles striking a section of the F-15 fuselage to assess potential crew hazards. The velocity of the fired projectiles ranged from 1500 ft/sec to 5000 ft/sec and the lowest overpressure which was recorded was 7 PSF or 145 dB and the highest level recorded was 1875 PSF or 194 dB sound pressure level (re 20 u Pa). Time histories for each recording and the sound exposure spectrum levels as a function of frequency are presented. A hearing damage risk assessment was made in the context of the Air Force hearing damage risk criteria (AFR 161-35) and laboratory data regarding the effects of high level impulses on man. Acoustics, Blast Overpressure, Hearing Loss Ear Muffs.


Descriptors :   *DAMAGE , *OVERPRESSURE , *BLAST , *HEARING , VELOCITY , FREQUENCY , FUNCTIONS , AIR , CREWS , PRESSURE , ACOUSTICS , EAR , SOUND PRESSURE , LABORATORIES , SOUND , FUSELAGES , TIME , PROJECTILES , HAZARDS , AIR FORCE , RISK


Subject Categories : Anatomy and Physiology
      Ammunition and Explosives
      Fluid Mechanics


Distribution Statement : APPROVED FOR PUBLIC RELEASE