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Re-entry Phase of an Unmanned Lifted Vehicle: 3-D Attitude Dynamics Control with a Lyapunov Approach

机译:无人驾驶车辆的重新进入阶段:3-D姿态动态控制与Lyapunov方法

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This paper deals with the problem of attitude control of a winged unmanned re-entry space vehicle during the descent phase towards Earth. A complete 6 DOF simulation model has been implemented with longitudinal and lateral aerodynamic databases for the clean configuration of the vehicle. A control strategy based on Lyapunov stability theory is applied getting finally an attitude control law for the aerodynamic surface deflections. Simulation results show good performances of the controller while tracking the reference signals even in presence of wind perturbations and of errors in the entry conditions in the phase discussed. The selected control strategy needs no linearization and no gain scheduling. The dynamic simulation is developed for an unmanned demonstrator of new technologies with regard to the next generation launch vehicles.
机译:本文涉及朝向地球下降阶段翼展无人入境空间车辆态度控制问题。完整的6 DOF模拟模型已经用纵向和横向空气动力学数据库实现,用于车辆的清洁配置。基于Lyapunov稳定性理论的控制策略最终应用了空气动力表面偏转的态度控制法。仿真结果显示了控制器的良好性能,同时即使在讨论的相位中的进入条件下存在的风扰动和误差也是如此。所选控制策略不需要线性化,没有增益调度。对于关于下一代发射车辆的新技术的无人证明,开发了动态仿真。

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