空间飞网系统动力学建模与仿真  

Dynamic modelling and simulation of a tethered-net in space

作　　者：陈鹏旭 吴晨晨 倪智宇 CHEN Pengxu;WU Chenchen;NI Zhiyu(Shenyang Institute of Automation,Chinese Academy of Sciences,Shenyang 110017,China;School of Mechanical Engineering,Shenyang University of Technology,Shenyang 110870,China;School of Physics Nanjing University of Science and Technology,Nanjing 210094,China;School of Aeronautics and Astronautics Shenyang Aerospace University,Shenyang 110136,China)

机构地区：[1]中国科学院沈阳自动化研究所,沈阳110017 [2]沈阳工业大学机械工程学院,沈阳110870 [3]南京理工大学物理学院,南京210094 [4]沈阳航空航天大学航空宇航学院,沈阳110136

出　　处：《北京航空航天大学学报》2024年第9期2951-2962,共12页Journal of Beijing University of Aeronautics and Astronautics

基　　金：国家自然科学基金(51905527);中国科学院沈阳自动化研究所自主部署项目;中央高校基本科研业务费专项资金;辽宁省教育厅基本科研项目(JYTMS20230254);国家自然科学基金基础科学中心项目(62388101)。

摘　　要：空间飞网系统捕获带有自旋的空间碎片后,碎片会对捕获网与卫星间的连接绳施加扭矩,而目前绳索相关动力学模型无法完整描述其扭转行为。基于集中质量法,对绳索进行二次离散,建立了可以描述绳索扭转行为的动力学模型。通过与传统绳索动力学模型的对比及扭转实验,验证了该模型能够描述绳索在拉伸、弯曲及扭转载荷下的行为,发现绳索的扭转会产生额外的牵引力。针对飞网展开过程进行了仿真分析与实验,验证该动力学模型适用于飞网系统,并对飞网与空间碎片的组合体进行了仿真分析,发现因为绳索扭转产生的牵引力,会对主体卫星的稳定性产生一定的影响,忽略绳索的扭转行为会降低动力学仿真模型的准确性。Once the space tether-net captures the spinning space debris,a torque will be exerted on the connecting tether between the capture net and the satellite.However,the current tether-related dynamic model can't fully describe its twisting behavior.In order to address this issue,a quadratic discrete model is constructed using the lumped parameter method to accurately depict the twisting behaviors of the tether.Comparison with the traditional dynamic model and a torsional experiment for the tether verify that the quadratic discrete model can describe the responses of the tether subjected to tension,bending or torsion.It is found that the torsion of the tether will produce additional traction.Furthermore,the deployment procedure of the tether-net is subjected to simulation analysis and experimentation,which confirms the suitability of the dynamic model for the tether-net system.The simulated examination of the tether-net and space debris combo reveals that the torsional force generated by the rope's twisting will affect the stability of the primary satellite to some extent.Ignoring the twisting behavior of the tether will reduce the accuracy of the dynamic simulation model.

关 键 词：绳索动力学 飞网 空间碎片 集中质量法 多体动力学 

分 类 号：V414.9[航空宇航科学与技术—航空宇航推进理论与工程] TB122[理学—工程力学]