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Effects of Time-Varying Mass on the Dynamic Behavior of a Descending Parachute System
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 Title & Authors
Effects of Time-Varying Mass on the Dynamic Behavior of a Descending Parachute System
Jang, Woo-Young; Baek, Sang-Tae; Myong, Rho-Shin; Jin, Yeon-Tae;
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Accurate prediction of the trajectory and time of a time-varying mass parachute system remains essential in the mission requiring a precision airdrop to the ground. In this study, we investigate the altitude-varying behavior of a cross-type parachute system designed to deliver a time-varying mass object like flare. The dynamics of the descending parachute system was analyzed based on the Runge-Kutta method of the ordinary differential system. The drag coefficients of the cross-type parachute and flare were calculated by a CFD code based on the incompressible Navier-Stokes equation. Finally, by using a simplified gust wind model in troposphere, the combined effects of gust wind and time-varying mass were examined in detail.
Parachute System;Flare;Varying Mass;CFD;Trajectory Analysis;
 Cited by
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