| 新一代火箭卫星整流罩的模态特性分析、试验与模型修正 |
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| 引用本文： | 朱春艳,臧旭,张锦,刘松,狄文斌.新一代火箭卫星整流罩的模态特性分析、试验与模型修正[J].动力学与控制学报,2017,15(6):544-549. |
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| 作者姓名： | 朱春艳 臧旭 张锦 刘松 狄文斌 |
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| 作者单位： | 1. 上海宇航系统工程研究所 上海201109;2. 上海宇航系统工程研究所 上海201109;复旦大学航空航天系 上海200433 |
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| 基金项目： | 上海市科学技术委员会扬帆计划项目（15YF1411900） |
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| 摘 要： | 针对全透波段非金属夹层结构的新一代运载火箭卫星整流罩,建立有限元模型,计算了半罩在不同边界条件下的模态特性.地面模态试验中,采用垂直悬挂和置于海绵垫上多种方式模拟自由边界条件,基于频响函数和特征值、特征向量辨识半罩模态,基于试验结果采用模型缩聚迭代算法对仿真计算模型进行模型修正,得到高精度的可供全箭动力学分析和整流罩分离分析使用的有限元模型.
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| 关 键 词： | 新一代运载火箭 非金属夹层整流罩 结构动力学 模态试验 模型修正 |
| 收稿时间： | 2016/5/19 0:00:00 |
| 修稿时间： | 2016/8/11 0:00:00 |
Test, analysis and model updating of structural dynamics for satellite fairing of new generation space vehicle |
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| Zhu Chunyan,Zang Xu,Zhang Jin,Liu Song and Di Wenbin.Test, analysis and model updating of structural dynamics for satellite fairing of new generation space vehicle[J].Journal of Dynamics and Control,2017,15(6):544-549. |
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| Authors: | Zhu Chunyan Zang Xu Zhang Jin Liu Song and Di Wenbin |
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| Affiliation: | 1.Aerospace System Engineering Shanghai, Shanghai201109;2.Department of Aeronautics and Astronautics, Fudan University, Shanghai200433; |
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| Abstract: | A finite element model of half-fairing of a new generation space vehicle with laminated nonmetal structure is built for the modal analysis. For the laboratory modal test, several methods are used to simulate the free boundary condition, such as hanging the fairing with a suspension system or putting the fairing on a sponge cushion. Model identification of half- fairing modes is done based on FRF, eigenvalues and eigenvectors. Based on test model, the finite model is updated. At last, a high-precision finite element model of satellite fairing is developed, which can be used for the analysis of fairing separation and space vehicles. |
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| Keywords: | new generation space vehicle laminated nonmetal satellite fairing structural dynamics modal test model updating |
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