| 大型整流罩地面分离仿真预示与试验研究 |
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| 引用本文： | 李刚,唐霄汉,艾森,郝鹏,娄路亮,何巍,栾宇,柳海龙.大型整流罩地面分离仿真预示与试验研究[J].宇航学报,2015,36(7):833-839. |
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| 作者姓名： | 李刚 唐霄汉 艾森 郝鹏 娄路亮 何巍 栾宇 柳海龙 |
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| 作者单位： | 1. 大连理工大学工业工程力学系装备结构分析国家重点实验室，大连 116024；
2. 北京宇航系统工程研究所，北京 100076 |
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| 基金项目： | 国家973项目(2014CB046506, 2014CB049000)；国家自然科学基金(11402049)；中国博士后科学基金(2014M551070)；中央高校基本科研业务费专项资金(DUT14RC(3)028) |
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| 摘 要： | 首先利用弹簧效能系数折减法对某大型整流罩的弹性有限元模型进行合理简化，然后基于耦合欧拉-拉格朗日（Coupled Eulerian-Lagrangian, CEL）算法对其地面分离试验进行仿真预示，获得了整流罩分离过程中的流场分布规律和分离特性，并分别与传统方法及地面试验进行对比，发现基于CEL算法的仿真结果比传统方法更接近试验结果，可作为工程应用的参考方法。
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| 关 键 词： | 整流罩分离 流固耦合 CEL算法 地面分离试验 |
| 收稿时间： | 2014-07-09 |
Simulation and Experimental Research on Ground Separation of a Large Scale Payload Fairing |
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| LI Gang,TANG Xiao han,AI Sen,HAO Peng,LOU Lu liang,HE Wei,LUAN Yu,LIU Hai long.Simulation and Experimental Research on Ground Separation of a Large Scale Payload Fairing[J].Journal of Astronautics,2015,36(7):833-839. |
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| Authors: | LI Gang TANG Xiao han AI Sen HAO Peng LOU Lu liang HE Wei LUAN Yu LIU Hai long |
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| Institution: | 1.State Key Laboratory of Structural Analysis for Industrial Equipment, Department of Engineering Mechanics, Dalian University of Technology, Dalian 116024, China;
2.Beijing Institute of Astronautical Systems Engineering, Beijing 100076, China |
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| Abstract: | In this paper, elastic finite element model of a large-scale payload fairing is reasonably simplified by using spring coefficient reduction method. Then, ground separation test is predicted by means of simulation based on the Coupled Eulerian-Lagrangian (CEL) algorithm, and compared with traditional method and test result respectively. It is found that the result obtained by CEL algorithm is closer to the test result than that of the traditional method, and the proposed method can be used as a reference for engineering applications. |
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| Keywords: | Fairing separation Fluid-structure interaction CEL algorithm Ground separation test |
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