Impact Response of an Energy Absorbing Earcup,

Abstract

Twelve impacts tests on instrumented human cadavers were performed at Wayne State University to compare the load attenuating capability of an energy absorbing earcup with that of the standard rigid earcup used in SPH-4 flight helmets. SPH-4 helmeted cadavers were dropped from heights varying from 1.17 to 2.03 m. so as to receive a direct impact to the right side of the helmet. The helmet was equipped with either standard or energy absorbing earcups. Loads were measured at the impact surface and accelerations were measured through a triaxial accelerometer mounted to the cadaver's maxilla. Analysis of the data shows a significant decrease in both peak load and acceleration in the y axis for the energy absorbing earcup equipped helmets over those measured for the standard earcup equipped helmets.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1983
Accession Number
ADA134828

Entities

People

  • D. F. Shanahan

Organizations

  • United States Army Aeromedical Research Lab

Tags

Communities of Interest

  • Biomedical
  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Artillery
  • Aviation Accidents
  • Biological Sciences
  • Body Regions
  • Bone Fractures
  • Drop Tests
  • Engineering
  • Flight Helmets
  • Health Services
  • Human Factors Engineering
  • Impact Tests
  • Load Cells
  • Military Research
  • Skull
  • Test Methods
  • United States

Readers

  • Acoustics.
  • Military Engineering.
  • Structural Dynamics.