Biodynamic Modeling and Simulation of the Ejection Seat/Occupant System

Abstract

Ejection seat dynamic characteristics and potential injury to its occupant are essential concerns for evaluating ejection systems. To better assess the interaction between the ejection seat and the occupant, an ejection seat model, EASY5/ACESII, was coupled with an occupant model, ATE. Additionally, the aerodynamics capabilities in both the seat and occupant models were consolidated. The occupant/seat separation algorithms were also designed and implemented. Simulation graphics were reported and various simulation time histories were compared with those from ejection seat sled tests. The integrated model successfully predicts the major features of the ejection seat motion and the crewmember biodynamics responses.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 2000
Accession Number
ADA380710

Entities

People

  • Annette Rizer
  • Deren Ma
  • Lawrene Rogers
  • Louise Obergefell

Tags

Communities of Interest

  • Air Platforms
  • Biomedical
  • Weapons Technologies

DTIC Thesaurus Topics

  • Aerodynamic Characteristics
  • Aerodynamic Forces
  • Aerodynamics
  • Air Force
  • Air Force Facilities
  • Air Force Research Laboratories
  • Aircrafts
  • Computer Programs
  • Ejection Seats
  • Engineering
  • Engineers
  • Escape Systems
  • Mach Number
  • Mechanical Engineering
  • Simulations
  • Sled Tests
  • Wind Tunnels

Fields of Study

  • Engineering

Readers

  • Computational Fluid Dynamics (CFD)
  • Explosive Engineering.