Modeling and simulation of rapid deployment system for stratospheric aerostat

Aiming at the risks and disadvantages such as lots of restrictive conditions of aerostat takeoff, great risk in levitation, a long time of deployment, a new scheme of rapid deployment for the aerostat is presented in this paper. In the scheme, the aerostat is launched by a vehicle to an objective airspace. Then, the rapid deployment is completed through system separation, brake parachute deceleration, inflation in air, and aerostat expansion. The multi-body dynamics model of the brake parachute, aerostat and Inflation mechanism during the process of Inflation and expansion is established through analysis of the system structure and work process. The results show that this scheme can achieve the all-weather rapid deployment of stratosphere aerostat.