| 运载火箭/航天器耦合分支模态综合法(上) |
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| 引用本文： | 邱吉宝,张正平,李海波,黄波,张忠.运载火箭/航天器耦合分支模态综合法(上)[J].强度与环境,2011(6):24-33. |
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| 作者姓名： | 邱吉宝 张正平 李海波 黄波 张忠 |
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| 作者单位： | 北京强度环境研究所可靠性与环境工程技术重点实验室; |
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| 摘 要： | 将运载火箭作为主结构、航天器作为分支子结构,分别采用自由界面模态展开定理和固定界面模态展开定理,导出分支模态综合法,进行运载火箭/航天器组合模型响应分析.进而,采用界面约束模态质量的界面加速度,导出航天器载荷估计方法,这时的运载火箭与航天器连接界面可以是静定的或静不定的.当仅考虑连接界面是静定的情况,界面约束模态质量将...
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| 关 键 词： | 分支模态综合法 有限元法 响应分析 |
Branch modal synthesis method for coupled launch vehicle and spacecraft（Ⅰ） |
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| Qiu Jibao Zhang Zhengping Li Haibo Huang Bo Zhang Zhong.Branch modal synthesis method for coupled launch vehicle and spacecraft（Ⅰ）[J].Structure & Environment Engineering,2011(6):24-33. |
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| Authors: | Qiu Jibao Zhang Zhengping Li Haibo Huang Bo Zhang Zhong |
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| Institution: | Qiu Jibao Zhang Zhengping Li Haibo Huang Bo Zhang Zhong(Science and Technology on Reliability and Environment Engineering Laboratory Beijing Institute of Structure and Environment Engineering,Beijing 100076,China) |
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| Abstract: | In this paper the launch vehicle is considered as the main structure and the spacecraft is considered as a sub-branch.By using the free interface modal expansion theorem and the fixed interface modal expansion theorem the branch mode synthesis method for coupled launch vehicle and spacecraft is explored.The response analysis of combined model is carried out.New estimation for spacecraft loads is consequently derived based on the acceleration for the mass of the interface constraint modes.For this new estima... |
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| Keywords: | the branch mode synthesis method the Finite element method the response analysis |
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