考虑气动干扰下的可控锥套建模和软管锥套系统仿真

Modeling of a Controllable Drogue and Simulation of Hose⁃Drogue Refueling Systems Under Aerodynamic Disturbances

开发了一个具有4个控制面的主动控制软管锥套的动态模型,以减轻头波效应和紊流在对接阶段对空气动力干扰。使用数值模拟计算了软管锥套的空气动力特性,并使用线性和多项式函数进行简化。利用空气动力模型设计了一个线性二次调节器(Linear quadratic regulator,LQR)控制器。使用MATLAB/Simulink构建了一个软管锥套模型,并验证了主动控制软管锥套在减少干扰效应方面的效力。还使用静态模型研究了控制面偏转角对软管悬挂曲线的影响。数值模拟结果表明,主动控制软管锥套降低了头波效应和紊流的干扰影响,提高了软管锥套系统的稳定性和空中加油的成功率。

A dynamic model of a stabilized drogue with four control surfaces is developed to mitigate the aerodynamic disturbances caused by the bow wave effect and wind turbulence during the docking stage of hose-drogue systems.Numerical simulations are used to identify the aerodynamic characteristics of the drogue,and the data is simplified using linear and polynomial functions.The aerodynamic model is used to design a linear quadratic regulator(LQR)controller.MATLAB/Simulink is used to construct a hose-drogue model and verify the effectiveness of the actively controllable stabilized drogue in reducing the effect of disturbances.The study also investigates the effects of control surface deflection angles on hose catenary curves using a static model.Numerical simulations show that the actively controllable stabilized drogue reduces the effects of the bow wave and wind turbulence,which maintains the stability of the hose-drogue system and improves the success rate of aerial refueling.