| 带多个充液储箱航天器的耦合动力学建模方法 |
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| 引用本文： | 黄华,曲广吉.带多个充液储箱航天器的耦合动力学建模方法[J].空间控制技术与应用,2010,36(3):14-19. |
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| 作者姓名： | 黄华 曲广吉 |
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| 作者单位： | 中国空间技术研究院通信卫星事业部,北京,100094 |
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| 摘 要： | 研究了充液航天器储箱内液体晃动与全星姿态运动的耦合动力学建模方法．分别基于单摆等效力学模型和质心面等效力学模型建立了全星姿态耦合动力学方程，并分别针对2个储箱串联布局、3个储箱并联布局的充液航天器在不同工况下的液体晃动问题进行了数值仿真研究；同时比较分析了两种储箱布局方案下液体晃动对航天器姿态运动的影响，为工程应用提供参考．
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| 关 键 词： | 航天器 液体晃动 等效力学模型 耦合动力学 数值仿真 |
Coupled Dynamics Modeling of Liquid Sloshing for Spacecraft with Multiple Propellant Tanks |
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| HUANG Hua,QU Guangji.Coupled Dynamics Modeling of Liquid Sloshing for Spacecraft with Multiple Propellant Tanks[J].Aerospace Contrd and Application,2010,36(3):14-19. |
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| Authors: | HUANG Hua QU Guangji |
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| Institution: | (The Institude of Telecommunication Satellite, China Academy of Space Technology, Beijing 100094, China) |
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| Abstract: | A pendulum model and a 3-dimensional constraint surface mechanical model to predict the forces and moments induced by liquid sloshing in spacecraft tanks are used to solve the coupled problems between liquid sloshing and attitude dynamics of a spacecraft. The coupled dynamics equations of space- craft with four propellant tanks are derived by using the Newton-Euler method. Numerical simulations are conducted in low- or micro-gravity environments, and the influence of liquid sloshing on attitude dynamics of the spacecraft with two propellant tanks or three propellant tanks are analyzed and compared. |
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| Keywords: | spacecraft liquid sloshing mechanical models coupled dynamics numerical simulation |
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