基于混合线性规划的RLV再入气动控制分配

Mixed linear programming algorithm of aerodynamic control surfaces for RLV re-entry

针对可重复使用运载器(RLV)再入阶段气动操纵面控制分配问题,将控制分配问题转化为有约束的优化问题,进而采用混合线性规划算法对其进行求解。针对气动操纵面与控制力矩呈现非线性关系的情况,采用分段线性规划算法解决了控制面发生故障等非线性在线可重构优化问题。最后通过仿真,验证了多种故障模式分段线性分配方法具有良好的可重构性能以及较小的分配误差。

In this paper,a control allocation problem for aerodynamic control surfaces of the Reusable Launch Vehicle（RLV） in the re-entry phase is transferred to a constrained optimization problem for them,and then the problem is solved by using a mixed linear programming algorithm.For the nonlinearity between aerodynamic control surfaces and control moments,the piecewise linear programming algorithm is used to solve the failure of the control surfaces and the on-line reconfigurable optimization problem.Finally,simulations verify a variety of failure modes of the piecewise linear method that can be reconstructed with good performance and smaller error distribution.