Application of Finite Element Modeling and Analysis to the Design of Positive Pressure Oxygen Masks

Abstract

This study investigated tools and techniques for performing finite element analysis of the MBU-20/P pilot's oxygen mask. The problem which was investigated was the fit of the mask to the face at Positive Pressure Breathing (PPB) pressures. Deformed geometry of the mask and reaction forces on the face were calculated to provide a measure of the fit. The MBU-20/P mask was first digitized by 3-D digitizer. A computer program was written to translate the digitized coordinate data to a finite element format for two commercial packages. The packages targeted were SDRC I-DEAS and PDA PATRAN. Other supplementary programs were written to perform some functions which would have been difficult to accomplish within the commercial codes. The tools and techniques developed are applicable to a wide class of problems, beyond the specific application to the oxygen mask analysis. They provide a capability to rapidly develop finite element models from existing prototypes for redesign, detailed analysis, or reverse engineering.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1991
Accession Number
ADA244045

Entities

People

  • Bruce H. Bitterman

Organizations

  • Air Force Institute of Technology

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Biomedical
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Breathing Masks
  • Computer Programming
  • Computer Programs
  • Computer-Aided Design
  • Computers
  • Engineering
  • Finite Element Analysis
  • Geometric Forms
  • Geometry
  • Grids
  • Life Support Systems
  • Lines (Geometry)
  • Oxygen Masks
  • Physical Properties
  • Three Dimensional
  • Two Dimensional

Readers

  • Computer Science.
  • Nanofabrication and Microfabrication.
  • Structural Dynamics.