超声速无尾飞行器最小阻力增量控制分配方法

Minimum Drag Incremental Control Allocation Method for Supersonic Tailless Aerial Vehicle

针对超声速无尾飞行器操纵面冗余度高、舵效非线性强、超声速巡航阻力大的问题,提出了一种最小阻力增量控制分配方法。在增量非线性控制分配框架下对超声速无尾飞行器的控制分配问题进行重构,然后在操纵面幅值与速率约束下,构建增量形式“分配精度-阻力”混合优化目标,并使用有效集二次规划求解,形成了一套完整的最小阻力控制分配方法。在超声速巡航条件下进行仿真,结果表明该方法可有效分配虚拟控制指令,减小飞行阻力。

Aiming at the problems of high redundancy of control surface,strong nonlinearity of rudder effectiveness,and large drag during supersonic cruise,a minimum drag incremental control allocation method is proposed.Firstly,the control allocation problem of supersonic tailless aerial vehicle is reconstructed under the framework of incremental nonlinear control allocation,then under the constraints of the control surface amplitude and velocity,an incremental form of“allocation accuracy-drag”mixed optimization goal is constructed,and efficient set quadratic programming method is used to solve,a complete set of minimum drag control allocation method is formed.The simulation is carried out under supersonic cruise conditions,and the results show that the method can realize the effective allocation of virtual control commands,and the flight drag is reduced.