| 火箭动特性的缩比模型及建模分析 |
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| 引用本文： | 邓魁英,王毅. 火箭动特性的缩比模型及建模分析[J]. 导弹与航天运载技术, 2003, 0(3): 6-12 |
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| 作者姓名： | 邓魁英 王毅 |
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| 作者单位： | 北京宇航系统工程设计部,北京,100076 |
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| 基金项目： | 国防科工委“十·五”预研课题“新一代运载火箭动特性获取技术研究”项目 |
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| 摘 要： | 论述了国外运载火箭动力学相似模型的研究动态，对缩比模型设计和制造中的有关问题进行了讨论，对缩比模型的三维建模理论和建模方法进行了研究，探索了采用NASTRAN的RBE3单元进行液体推进剂模拟，采用DMAP程序语言进行了矩阵缩减和模态质量矩阵的提取，并以CZ-2E／A火箭缩比模型为例，进行了理论与试验的相关性分析。
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| 关 键 词： | 整体结构 动力学特性 运载火箭 缩比模型 数学模型 相关性分析 |
| 文章编号： | 1004-7182(2003)03-0006-07 |
Studies on the Scaled Model and Mathematical Model for the Overall Dynamic Characteristics of Launch Vehicle |
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| Deng Kuiying Wang Yi. Studies on the Scaled Model and Mathematical Model for the Overall Dynamic Characteristics of Launch Vehicle[J]. Missiles and Space Vehicles, 2003, 0(3): 6-12 |
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| Authors: | Deng Kuiying Wang Yi |
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| Abstract: | In the paper, the latest developments in the dynamic scaled model of launch vehicle are summarized. Some problems on the design and manufacture of the scaled model are discussed. The modeling theory and techniques are studied here. The RBE3 element in NASTRAN is used to simulate the liquid propellant and a DMAP program is compiled to condense the matrix and abstract the model mass matrix. At last the correlation calculation is done between the analysis mode and test mode for CZ-2E/A scaled model rocket. |
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| Keywords: | Overall structure Dynamic characteristics Launch vehicle Scaled model Mathematics model Correlation analysis |
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