Mathematical modeling of the push-pull effect: Effect of acceleration profiles

Abstract

The push-pull effect (PPE) remains a critical problem for modern fighter aircrafts. The present study is part of an ongoing effort that uses mathematical models to investigate the effects of push-pull maneuver on the cardiovascular system and its possible countermeasures. A distributed hemodynamic model with carotid baroreflex has been employed to reflect the transient response of cardiovascular system to PPE. With simulation studies, the effect of different factors of push-push maneuver such as baseline, duration and onset rate of push phase, and onset rate of pull phase is explored. Comparison with centrifuge experimental data published validates the results and indicates that mathematical modeling is a promising tool for the study on PPE mechanism and its countermeasures.