Year: 2025
Type: article
Abstract: Traditional aerostat deployment systems within the Earth’s atmosphere face various limitations, such as high risk and lengthy deployment times. In contrast, rapid-deployment aerostat systems have the advantage of high efficiency and flexibility. To improve the deceleration and stability performance, a dynamic model of the parachute and dynamic and thermodynamic models of the aerostat are established in this work. The impact of different parachute radii, rise–radius ratios (hp/Rp), and filling-time coefficients during the deceleration and inflation process is investigated in detail. Additionally, the comparative analysis of different aerostats is discussed. The results show that the radius and hp/Rp of the parachute mainly affect its deceleration ability, while the filling-time coefficient affects the dynamic load. For radii of balloons exceeding 8 m, increasing the parachute radius cannot enable deployment above 10,000 m. As the radius of the balloon increases, a larger filling-time coefficient is required. A parachute with hp/Rp = 0.8 is recommended for a balloon with a radius below 6.5 m, and hp/Rp = 0.6 is recommended for a radius over 6.5 m. These findings provide valuable references for rapid-deployment aerostat systems.
Source: Aerospace
Authors: Jun Liao, Yu Mai, Jun Li, Yi Jiang, Siyuan Wang, Kai Zhang
Institution: Central South University
Language: English
Subfield: Aerospace Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,896
OpenAlex ID: W4410817311