Effects of Head Mounted Devices on Head-Neck Dynamic Response to +GZ Accelerations

Abstract

An investigation is described which addresses the inertial loading effects of Head Mounted Devices (HMD) on aviator head-neck-spine dynamic response during high +Gz acceleration exposure. The primary objectives of this study were to develop a methodology which could be used to establish limits on HMD inertial properties and to apply this methodology to the evaluation of the severity of the internal loads -- occurring in the neck and upper spine -- associated with certain specific HMD ensembles. This paper describes how the Head-Spine Model (HSM), a highly discretized, 3-D mathematical representation of the human head-spine- torso structure, was used to: 1) establish a set of baseline response criteria (BRC); 2) establish a preliminary methodology for setting limits on HMD inertial properties; and 3) evaluate the severity of the loading associated with possible chemical defense (CD) ensembles.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1989
Accession Number
ADA459960

Entities

People

  • Eberhardt Privitzer
  • Harry 0. Armstrong
  • Ints Kaleps

Organizations

  • Calspan

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Air Force
  • Air Force Facilities
  • Bending Moments
  • Computer Programs
  • Connective Tissue
  • Dynamic Response
  • Equations
  • Fixed Wing Aircraft
  • Geometry
  • Military Aircraft
  • Simulations
  • Skeletal Muscle
  • Spinal Column
  • Spinal Injuries
  • Spine
  • Three Dimensional
  • Wounds And Injuries

Readers

  • Adaptive Control and Estimation with Uncertainty in Dynamic Systems.
  • Explosive Engineering.
  • Human-Computer Interaction (HCI).