The complex missions and operational environment for reusable launch vehicles at entry phase usually impose stringent challenges on its fault-tolerant control schemes, which shall require control allocation that can exploit the full potential of redundant actuators to follow the desired maneuvering demands, while also respecting the actuators’ physical constraints. Currently, the special challenge of control allocation for reusable launch vehicles is to optimally manage nonhomogenous actuators, including the reaction control system jets and aerosurfaces, within a short control cycle at the inner-loop of the flight control system. In this article, we propose a practical method, which can tackle the above challenge efficiently. The proposed method can cope with complex binary control characteristics that reaction control system jets have (e.g., minimum firing time limit, upper limit of active jets’ number), while also solving control allocation optimally at a fast computation speed. Numerical test results based on a revised X-33 reentry platform (8 aerosurfaces and 10 jets), in comparison with conventional control allocation schemes on mixed-integer linear programming, demonstrate the effectiveness of the proposed method.
Practical Method of Control Allocation of Jets and Aerosurfaces for Reusable Launch Vehicle at Entry Phase
IEEE Transactions on Aerospace and Electronic Systems ; 61 , 2 ; 5343-5353
2025-04-01
2288421 byte
Article (Journal)
Electronic Resource
English
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