翼伞-载荷系统的航迹跟踪
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Research on the Path Tracking of the Parafoil-Payload System
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    摘要:

    翼伞-载荷系统可被用于精确空投、定点无损着陆以及大型航天器的回收,在航空航天、军事等领域发挥着非常重要的作用。因此,基于翼伞-载荷系统的八自由度动力学模型,采用横向非线性控制方法,对翼伞-载荷系统的航迹跟踪进行了理论分析与仿真模拟。仿真结果表明,飞行器与参考点之间的较佳距离L1为100 m;该距离内,无风和受到5 m/s常值风情况下,所提出的翼伞-载荷系统均能较好地完成90°, 180°, 270°, 360°转弯的航迹跟踪,说明横向非线性控制方法具有较好的控制性能和一定的抗风能力,可被应用于翼伞-载荷系统的航迹跟踪控制,为翼伞-载荷系统的优化设计以及大型航天器回收的精确控制提供参考。

    Abstract:

    The parafoil-payload system, which plays an important role in such fields as aerospace and military affairs, can be applied for precision airdrop, nondestructive landing and large spacecraft recovery. Therefore, based on 8-DoF dynamic model of the parafoil-payload system, the lateral nonlinear control method has been adopted to analyze and simulate the tracking of the parafoil-payload system. The simulation results show that 100 m will be the optimum distance L1 between the vehicle and the reference point, under which condition, the proposed parafoil-payload system can efficiently achieve trajectory tracking under different turning angles of 90°, 180°, 270° and 360° without wind or with a constant wind of 5 m/s. It illustrates that the lateral non-linear control method exhibits a better control performance as well as certain control ability to withstand wind, which can be applied to the trajectory tracking of the parafoil-payload system, thus providing a good reference to the optimization design of the parafoil-payload system and precision control of large spacecraft recovery.

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窦天恒,程文科,高普云.翼伞-载荷系统的航迹跟踪[J].湖南工业大学学报,2017,31(5):11-16.

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  • 收稿日期:2017-08-10
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  • 在线发布日期: 2017-11-22
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