Modeling and analyzing of common aero vehicle with parametric configuration

A Common Aero Vehicle (CAV) model based on wing-body combined with lifting body configuration is proposed in this paper. A parametric modeling technique is employed to describe the vehicles' configuration. The aerodynamic coefficients are calculated by using an engineering method. The aerodynamic model is obtained through data fitting and can be used for guidance and control design and simulation. The static stability, aerodynamic efficiency and control performance are investigated. Small disturbance linearization and analysis of entry dynamics equations is conducted at the selected equilibrium point. The dynamics system has unstable positive eigenvalues, which means the active attitude control is needed to maintain vehicle stability. A ground track based minimum turning radius formula is presented to evaluate the maneuverability of vehicle. The result shows that this CAV model has good maneuverability.