摘要
针对深空探测采样返回高精度起旋分离,实现返回器再入大气姿态稳定的需求。在自主研发的被动式起旋分离机构的基础上,以多刚体系统动力学理论为基础,建立返回器起旋分离ADAMS动力学仿真分析模型,开展起旋分离过程综合敏度分析、敏感参数偏差耦合分析以及覆盖性分析研究,以此评估多参数偏差对返回器初始分离姿态的影响。分析结果表明:动力回转轴偏差和返回器横向质心偏差对返回器起旋分离姿态影响最为明显;合理配置动力回转轴及返回器横向质心位置有助于改善初始分离姿态;经多参数偏差覆盖性分析,验证了起旋分离各项指标的符合性。为深空探测采样再入返回高精度、高可靠分离技术的工程实施提供理论指导。
In a certain deep space exploration and sampling mission,the returner needs to enter the earth’s atmosphere by spin separation,and needs to maintain its own attitude stability.Based on the self-developed spin separation mechanism,the multi-body dynamic simulation model of the spin separation of the returner is established.The comprehensive sensitivity analysis of multi-parameters,the coupling analysis of sensitive parameters and the analysis of multi-parameter coverage are carried out.The result shows that the spring lateral installation deviation and the returner’s transverse center of mass deviation have the most obvious influence on the separation attitude;it is helpful to improve the initial separation attitude of the returner by adjusting the horizontal position of the spring and the position of the mass horizontal center of the returner;the spin separation index is further verified by multi-parameter coverage simulation analysis.The research content of this paper can provide theoretical guidance for the engineering technology for deep space exploration sampling.
作者
朱佳林
殷新喆
朱汪
吴琼
韩润奇
柳翠翠
曾福明
刘芃
ZHU Jia-lin;YIN Xin-zhe;ZHU Wang;WU Qiong;HAN Run-qi;LIU Cui-cui;ZENG Fu-ming;LIU Peng(Beijing Institute of Spacecraft System Engineering,Beijing 100094,China)
出处
《宇航学报》
EI
CAS
CSCD
北大核心
2021年第12期1515-1524,共10页
Journal of Astronautics
基金
国家重点研发计划(2018YFF0216004)。
关键词
再入返回
起旋分离
动力学
分离姿态
Reentry return
Spin separation
Dynamics
Separation attitude
