Accession Number:

ADA273462

Title:

Elastance and Inertance in UBA Breathing Bag Simulation and Design

Descriptive Note:

Technical rept. Jun 1990-Aug 1992

Corporate Author:

NAVAL MEDICAL RESEARCH INST BETHESDA MD

Report Date:

1993-09-01

Pagination or Media Count:

44.0

Abstract:

This work deals with various aspects of elastance and inertance as they relate to UBA breathing bag design, including non-linear elastance, impedance testing, and methods of inertance reduction and control. The results of this work show that a nonlinear elastance may-be useful in dual breathing bag design but not in single bag designs, b elastance should be measured statically or quasi-statically rather than dynamically because of potential nonlinearity invalidating forced oscillation analyses, and c inertance in water column experiments can be virtually eliminated when water is displaced radially rather than axially during tidal breathing. This results from moving water in a manner which minimizes linear accelerations. Elastance, Inertance, Breathing bag design, Impedance testing

Subject Categories:

  • Life Support Systems

Distribution Statement:

APPROVED FOR PUBLIC RELEASE