宇航学报

宇航学报 ›› 2021, Vol. 42 ›› Issue (5): 552-561.doi: 10.3873/j.issn.1000-1328.2021.05.002

• 飞行器设计与力学 • 上一篇    下一篇

充液柔性航天器刚-液-柔耦合动力学研究的凯恩方法

孙梓煜，岳宝增，刘峰，柳征勇，申云峰   

  1. 1.北京理工大学宇航学院，北京 100081； 2.上海宇航系统工程研究所，上海 201109；3.郑州工业应用技术学院信息工程学院，郑州 451199
  • 收稿日期:2020-06-16 修回日期:2020-07-27 出版日期:2021-05-15 发布日期:2021-05-15
  • 基金资助:
    国家自然科学基金（11472041, 11772049, 11532002, 11802320）

Study on Rigid Liquid Flex Coupling Dynamics  for Spacecraft by Kane’s Method

SUN Zi yu, YUE Bao zeng, LIU Feng, LIU Zheng yong, SHEN Yun feng   

  1. 1. School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, China; 2. Aerospace Systems Engineering Shanghai, Shanghai 201109, China; 3. School of Information Engineering, Zhengzhou University of Industrial Technology, Zhengzhou 451199, China

  • Received:2020-06-16 Revised:2020-07-27 Online:2021-05-15 Published:2021-05-15

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摘要： 借助凯恩方法对携带太阳能帆板的充液航天器耦合系统进行动力学建模，采用六自由度描述航天器的轨道及姿态运动，由运动脉动球模型模拟贮箱内液体燃料的晃动，根据几何非线性变形的假设引入太阳能柔性帆板的动力刚化效应并建立了航天器刚-液-柔耦合系统动力学模型。最后，为了验证理论的正确性和模型的合理性进行了数值仿真，结果表明微重力环境下液体晃动对航天器姿态机动将产生明显的干扰；随着重力效应的增加液体晃动对航天器姿态机动的干扰愈发明显，而刚液柔耦合效应对航天器的姿态机动具有不可忽视的影响。研究成果对复杂航天器动力学分析与总体设计有重要参考意义。


关键词: 充液柔性航天器, 运动脉动球模型, 液体大幅晃动, 凯恩方法

Abstract: Kane’s equation is resorted to build the mathematical model of the coupling dynamical system for the liquid filled spacecraft with flexible solar panel. Six degrees of freedoms are used to describe the orbital and attitude motion of spacecraft. The liquid sloshing dynamics in the tanks is equivalently replaced by using the moving pulsating ball model. The stiffening effect of flexible solar panels is incorporated into the dynamics formulation by adopting the hypothesis of geometrically nonlinear deformation. Then the rigid liquid flexible coupling dynamic model for the spacecraft is established. Numerical simulations are carried out to show the validity and efficiency of the coupling dynamical model presented in this paper, and the results show that the liquid sloshing has obvious influence on the rigid liquid flexible coupling spacecraft in zero gravity. With the increase of gravity effect, the interference of liquid sloshing on spacecraft attitude maneuver becomes more obvious. It is also found that the rigid liquid flex coupling influence can’t be ignored on the attitude maneuver of spacecraft. The research results are of great significance for the dynamic analysis and overall design of complex spacecraft.


Key words: flexible spacecraft, Moving pulsating ball model, Large amplitude liquid sloshing, Kane’s equation

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