| 微重环境下Cassini贮液腔中液体晃动特性研究 |
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| 引用本文： | 岳宝增,于丹.微重环境下Cassini贮液腔中液体晃动特性研究[J].动力学与控制学报,2012,10(1):76-80. |
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| 作者姓名： | 岳宝增 于丹 |
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| 作者单位： | 北京理工大学宇航学院力学系,北京 100081;北京理工大学宇航学院力学系,北京 100081 |
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| 基金项目： | 国家自然科学基金资助项目（10772026,11072030） |
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| 摘 要： | 针对我国某一型号大型卫星液体燃料Cassini贮箱（腰为圆柱,两底为半球）,应用有限元方法研究了微重环境下液体的小幅晃动问题和横向受迫晃动问题,采用Galerkin方法得到了系统的有限元离散方程；得到了晃动固有频率和等效力学模型参数.针对周期脉冲激励,推导了液体作用于贮箱壁的晃动力和晃动力矩计算公式并给出了数值计算结果和分析结论.
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| 关 键 词： | 微重力 液体晃动 等效力学模型 有限元 周期脉冲激励 |
| 收稿时间： | 2011/6/13 0:00:00 |
| 修稿时间： | 7/5/2011 12:00:00 AM |
Research on liquid sloshing characteristics in cassini container in micro-gravity environment |
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| Yue Baozeng and Yu Dan.Research on liquid sloshing characteristics in cassini container in micro-gravity environment[J].Journal of Dynamics and Control,2012,10(1):76-80. |
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| Authors: | Yue Baozeng and Yu Dan |
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| Affiliation: | Yue Baozeng Yu Dan ( Department of Mechanics,School of Aerospace Engineering,Beijing Institute of Technology,Beijing 100081) |
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| Abstract: | For a certain geometric shape of liquid fuel container-Cassini tank,which has a cylindrical waist and two hemispherical bottoms,and is used in a large satellite of our country,the problems of liquid sloshing and lateral forced sloshing in micro-gravity environment were studied by using finite element method. The finite element equations of the system were derived by means of Galerkin method. The natural frequency of sloshing and the equivalent model parameters of sloshing were obtained. For periodic pulse excitations,the numerical formulations for computing the sloshing force and momentum acting on the wall of the tank were deduced. Finally,the numerical results and some conclusion remarks were given. |
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| Keywords: | micro-gravity liquid sloshing equivalent mechanical model finite element method periodic pulse excitation |
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