Safe-trajectory optimization and tracking control in ultra-close proximity to a failed satellite

被引：15

作者：

Zhang, Jingrui ^{[1
]}

Chu, Xiaoyu ^{[1
]}

Zhang, Yao ^{[1
]}

Hu, Quan ^{[1
]}

Zhai, Guang ^{[1
]}

Li, Yanyan ^{[1
]}

机构：

[1] Beijing Inst Technol, Sch Aerosp Engn, Beijing 100081, Peoples R China

来源：

ACTA ASTRONAUTICA | 2018年 / 144卷

基金：

中国国家自然科学基金;

关键词：

Trajectory optimization; Collision avoidance; Active and passive trajectory protection; Adaptive Gauss pseudospectral method; Finite-time control; SLIDING MODE-CONTROL; PSEUDOSPECTRAL METHOD; COLLOCATION; SPACECRAFT; CONVERGENCE; MANEUVERS; SYSTEMS; BODY;

D O I：

10.1016/j.actaastro.2017.12.047

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

This paper presents a trajectory-optimization method for a chaser spacecraft operating in ultra-close proximity to a failed satellite. Based on the combination of active and passive trajectory protection, the constraints in the optimization framework are formulated for collision avoidance and successful docking in the presence of any thruster failure. The constraints are then handled by an adaptive Gauss pseudospectral method, in which the dynamic residuals are used as the metric to determine the distribution of collocation points. A finite-time feedback control is further employed in tracking the optimized trajectory. In particular, the stability and convergence of the controller are proved. Numerical results are given to demonstrate the effectiveness of the proposed methods.

引用

页码：339 / 352

页数：14

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