| 小卫星偏心分离动力学仿真模型的建立与验证 |
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| 引用本文： | 沈晓凤,肖余之,康志宇.小卫星偏心分离动力学仿真模型的建立与验证[J].飞行力学,2012,30(3):258-262. |
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| 作者姓名： | 沈晓凤 肖余之 康志宇 |
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| 作者单位： | 上海市空间飞行器机构重点实验室,上海201108;中国航天科技集团公司空间安全与维护总体技术研究中心,上海201108 |
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| 基金项目： | 国防科工局民用航天预先研究资助项目 |
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| 摘 要： | 针对筒式偏心分离问题,以单星分离为例,基于多体动力学理论对小卫星分离过程动力学问题进行了仿真分析。分别对平动副约束简化模型和物理模型进行了探讨;论述了小卫星的偏心分离过程与地面模拟试验过程之间的对应比拟关系,对地面模拟试验的有效性进行了评估;依据地面试验结果,对比地面与空间零重力环境条件下小卫星分离时的运动特性,讨论了仿真模型的正确性,并分析了该类筒式偏心分离过程的力学现象与机理。
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| 关 键 词： | 偏心分离 动力学 仿真 试验验证 |
Establishment and validation on dynamics simulation model of separation of eccentric sub-satellite |
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| SHEN Xiao-feng
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XIAO Yu-zhi
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KANG Zhi-yu.Establishment and validation on dynamics simulation model of separation of eccentric sub-satellite[J].Flight Dynamics,2012,30(3):258-262. |
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| Authors: | SHEN Xiao-feng XIAO Yu-zhi KANG Zhi-yu |
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| Institution: | 1,2(1.Shanghai Key Laboratory of Spacecraft Mechanism,Shanghai 201108,China; 2.Space Security and Maintenance Center of Shanghai Academy of Spaceflight Technology, CASTC,Shanghai 201108,China) |
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| Abstract: | Some rational parameters are selected from the simplified sub-satellite which is fixed eccentrically on the main aircraft,the translating constrained model was compared with the true model through multi-body dynamics theory.Analogue relation and motion of which are discussed during the course of their separation.This paper analyzed motion characteristics under the conditions of ground and space zero-g when separating the satellite,discussed the correction of the tow simulation models,and presented the performance and mechanism of the separation. |
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| Keywords: | eccentricity separation dynamics simulation experiment validation |
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