Abstract:

The reusable launch vehicle (RLV) has multiple control effectors for large flight envelope control, so an optimized control allocation for control effectors is required. Considering the coupled three-axis angular motion, a dynamic inverse strategy for control moment calculation is proposed. For maximum using of aerosurfaces and reducing the reaction control system (RCS)’s fuel consumption, a mixed programming method is involved, the moment between aero-surfaces and RCS is allocated by daisychained, RCS doesn’t start until aerodynamic control surfaces are saturated. The moment between aero-surfaces allocation is using quadratic programming solution, The selecting switch jets of RCS is calculated by 0-1 integer linear programming. Simulation result shows that the mixed programming for RLV control allocation is capable of optimizing multiple control effectors.