Walker星座性能修复构型重构的弹性力学解法  

Configuration reconstruction elastic mechanics method for repairing a faulted Walker constellation performance

作　　者：贺波勇 李恒年[1] 周庆瑞[3] 麻蔚然 HE Boyong;LI Hengnian;ZHOU Qingrui;MA Weiran(State Key Laboratory of Astronautic Dynamics, Xi′an Satellite Control Center, Xi′an 710043, China;School of Astronautics, Northwestern Polytechnical University, Xi′an 710072, China;Qian Xuesen Laboratory of Space Technology, China Academy of Space Technology, Beijing 100094, China)

机构地区：[1]西安卫星测控中心宇航动力学国家重点实验室,陕西西安710043 [2]西北工业大学航天学院,陕西西安710072 [3]中国空间技术研究院钱学森空间技术实验室,北京100094

出　　处：《西北工业大学学报》2021年第2期278-284,共7页Journal of Northwestern Polytechnical University

基　　金：国家自然科学基金(11902362)资助。

摘　　要：Walker星座是全球覆盖最有效的星座,常用于对地观测、导航和互联网通信等。星座中卫星故障引起星座整体性能下降的场景可以使用在轨卫星构型重构一定程度上快速修复。与调整相邻卫星相位、均匀相位和均匀星座等经典策略不同,仿生薄膜板弹性力学应力应变过程,提出星座重构卫星机动策略,使修复后星座构型与之前相比性能下降最小,从而计算出每颗卫星机动策略。算例表明所提方法重构的星座比经典策略重构星座性能指标更优更协调。Walker constellation is the most effective constellation for global coverage and is often used for earth observation, navigation and internet communication. A scenario that several faulted satellites in a Walker constellation lead to its performance degradation can be quickly repaired to a certain extent by reconstructing the on-orbit satellite configuration. Different from the classical strategies such as adjusting the phase of the adjacent satellites, uniform the on-satellites′ phase and adjusting the plane of the adjacent satellites, this paper proposes a bionic reconstruction method which uses the elastic mechanics method of thin film plate to generate the satellite maneuver strategy in the constellation reconstruction process, minimizes the performance degradation between the repaired configuration and the previous configuration. Thus, the maneuver strategy of each satellite can be calculated in reversely. The simulation example shows that the maneuver strategy by the bionic reconstruction method is more harmonious and natural than the classical strategies.

关 键 词：WALKER星座 星座重构 弹性空间 弹性力学 

分 类 号：V412.4[航空宇航科学与技术—航空宇航推进理论与工程]