| 充液航天器液体晃动等效力学模型的建立 |
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| 引用本文： | 李英波,冯正进.充液航天器液体晃动等效力学模型的建立[J].上海航天,2003,20(4):1-5. |
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| 作者姓名： | 李英波 冯正进 |
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| 作者单位： | 1. 上海航天控制工程研究所,上海,200233
2. 上海交通大学,上海,200030 |
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| 摘 要： | 在考虑液体表面张力影响液体晃动求解的基础上,利用动力学方程等价准则,建立了三轴定向充液卫星在二维平动和二维摆动扰动作用下的空间摆等效力学模型,并对两种情况下等效摆的主要参数进行了计算和比较。结果表明,考虑表面张力时,液体的晃动特性对航天器姿态控制系统稳定性有不利影响。
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| 关 键 词： | 液体晃动 等效力学模型 液体表面张力 航天器 空间摆 |
| 文章编号： | 1006-1630(2003)04-0001-05 |
| 修稿时间： | 2002年12月24 |
Equivalent Mechanical Model for Spacecraft with Liquid Sloshing |
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| LI Ying bo ,FENG Zheng jin.Equivalent Mechanical Model for Spacecraft with Liquid Sloshing[J].Aerospace Shanghai,2003,20(4):1-5. |
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| Authors: | LI Ying bo FENG Zheng jin |
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| Institution: | LI Ying bo 1,FENG Zheng jin 2 |
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| Abstract: | Under the considerations of liquid surface tension that affects liquid sloshing, the equivalent dynamic model in type of space pendulum for three axis orientation satellite during disturbance of two dimensions translation and oscillation is constructed by using equivalence criterion for dynamic equations. The main parameters of equivalent pendulum are derived and analyzed both under translation and oscillation disturbance. The computation result shows that sloshing characteristic has a harmful influence to the stability of attitude control system while the liquid surface tension is under consideration. |
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| Keywords: | Liquid sloshing Mode vector Space pendulum Equivalent mechanical model |
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