Motion Dynamics Study of Descent Module with Non-Stiff Construction Elements

An angular motion of the uncontrolled descent module, designed with allowance for mass and aerodynamic asymmetry and the inflatable drag device strain, is simulated mathematically. A decent module having the exterior asymmetry and a side displacement of center-of-mass is considered as an example. Small strains of the drag device are shown to reduce the asymmetry effect on angular motion parameters.