| 空间结构的动应变控制 |
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| 引用本文： | 李东旭. 空间结构的动应变控制[J]. 国防科技大学学报, 2000, 22(4): 9-11 |
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| 作者姓名： | 李东旭 |
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| 作者单位： | 国防科技大学航天与材料工程学院,湖南,长沙,410073 |
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| 基金项目： | 国家“8 63”应用基础研究项目基金资助!( 863 2 ) |
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| 摘 要： | 针对一类航天器外伸结构的结构振动问题 ,提出了一种动应变控制方法。并以一梁式外伸结构为例 ,建立了结构振动的应变动力学方程 ,以及以动应变为状态变量的闭环反馈应变控制状态方程。进行了应变控制的数值仿真。结果表明 ,方法是有效的 ,对于解决大型外伸结构的振动控制问题具有十分重要的实际意义和应用价值。
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| 关 键 词： | 空间结构 动应变 应变控制 |
| 收稿时间： | 2000-04-03 |
Dynamical Strain Control of Space Structures |
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| LI Dongxu. Dynamical Strain Control of Space Structures[J]. Journal of National University of Defense Technology, 2000, 22(4): 9-11 |
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| Authors: | LI Dongxu |
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| Affiliation: | College of Aerospace and Materials Engineering, National Univ. of Defense Technology, Changsha 410073, China |
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| Abstract: | Some space structures have critical vibration problems owing to their low stiffness and low damping. And some traditional displacement control methods are no longer suitable to the space structures because they are hard to install. A new way to solve this problem has been introduced. Both the dynamical strain equation and the strain control state equation have been developed. A cantilever beam has been taken as an example. Numerical simulation has been done. The results show us that the vibration strain control is of great significance. |
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| Keywords: | space structure dynamic strain strain control |
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