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操纵面故障将改变飞机受到的气动力和力矩,降低机动性能和控制能力,基于传统质点模型的航迹规划方法难以解决此类飞机安全飞行轨迹优化问题.因此,引入由故障引起的侧滑和侧力,估计故障后气动力系数,建立故障飞机模型;针对故障飞机控制和机动能力下降的问题,在原故障模型的基础上引入控制量变化率,构建轨迹优化对象模型,并将控制量变化率最小作为优化指标;采用高斯伪谱法优化计算安全飞行轨迹.仿真实验以副翼和方向舵故障为例进行设计,结果满足运动方程及各控制量、状态量约束,并能实现平稳飞行.
The control plane failure will change the aerodynamic force and torque to the aircraft and reduce the maneuverability and control ability, and the trajectory planning method based on the traditional particle model can not solve the problem of flight safety optimization for such aircraft.Therefore, the introduction of slip and And the aerodynamic coefficient after failure is estimated to build a faulty aircraft model. Aiming at the problem of faulty aircraft control and maneuvering ability reduction, a control variable rate of change is introduced based on the original fault model to build a trajectory optimization object model, and the control variable rate of change And the minimum is taken as the optimization index.The Gaussian pseudospectral method is used to optimize the safety flight path.The simulation experiment takes the aileron and rudder failure as an example to design and the results satisfy the equations of motion and the constraints of the control quantities and state quantities and achieve a smooth flight.