| 变拓扑航天器附件展开动力学的全局仿真 |
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| 引用本文： | 王天舒,孔宪仁,王本利,马兴瑞.变拓扑航天器附件展开动力学的全局仿真[J].哈尔滨工业大学学报,2000,32(3):4-8. |
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| 作者姓名： | 王天舒 孔宪仁 王本利 马兴瑞 |
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| 作者单位： | 1. 哈尔滨工业大学航天工程与力学系，黑龙江 哈尔滨 150001
2. 中国空间技术研究院，北京 100083 |
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| 基金项目： | 国防预研基金，A966000-50， |
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| 摘 要： | 现代大型航天器附件的展开往往是分段进行的，其间包含了系统约束状态的改变和锁定碰撞过程的发生，在建立多柔体系动力学模型的基础上，提出了全局仿真的策略：对于其中的变约束问题采用预行锭义约束集、在仿真过程中实时检测并激活相应约束的求解策略。实现了系统拓扑结构在仿真过程中自动切换；而通过对速度约束方程的分析，提出了将动量守恒并入到约束方程求解以模块锁定过程中的方法，并将所开发的多柔性系统动力学仿真软件扩展
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| 关 键 词： | 拓扑结构 动量守恒 动力学仿真 航天器 |
| 文章编号： | 0367-6234(2000)03-0004-04 |
| 修稿时间： | 1998年11月23 |
Global simulation of spacecraft appendage deployment dynamics by variable topology |
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| WANG Tian-shu,KONG Xian-ren,WANG Ben-li,MA Xing-rui.Global simulation of spacecraft appendage deployment dynamics by variable topology[J].Journal of Harbin Institute of Technology,2000,32(3):4-8. |
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| Authors: | WANG Tian-shu KONG Xian-ren WANG Ben-li MA Xing-rui |
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| Abstract: | The deployment of spacecraft appendages is usually carried out in steps including variation of system constraints and locking of impact processes. From the dynamic model of flexible multibody system, the strategy for global simulation is proposed so that the automatic switching of system topologies is achieved by pre-defining, real-time testing and activating the variation constraint problem; through analysis of speed constraint equation, momentum conservation is incorporated into the constraint equation to simulate the locking process, and the software developed for dynamic simulation of flexible multibody system is further developed for global simulation of spacecraft appendage deployment. Simulation results show the feasibility of this method. |
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| Keywords: | variable topology conservation of momentum dynamic simulation |
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