| 平流层飞艇流固耦合分析方法研究 |
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| 引用本文： | 王晓亮,单雪雄,陈丽.平流层飞艇流固耦合分析方法研究[J].宇航学报,2011,32(1). |
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| 作者姓名： | 王晓亮 单雪雄 陈丽 |
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| 作者单位： | 1. 上海交通大学航空航天学院,上海,200240
2. 上海交通大学船舶海洋与建筑工程学院,上海,200240 |
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| 摘 要： | 平流层飞艇为了在平流层环境下获得足够的浮力,要求其体积庞大,由于跨度较大的充气柔性气囊结构容易发生变形,使得流固耦合特性非常显著.针对该类飞行器的流固耦合方法的研究是对其流固耦合特性分析的首要条件.本文基于流体动力学计算软件FLUENT和结构动力学分析软件ABAQUS,形成了分析平流层飞艇这类大型柔性充气结构流固耦合特性的非线性动态流体-结构交错积分耦合法.通过充气的圆球薄膜的解析解和NACA65A006机翼颤振特性的实验结果与计算结果的比较对该方法的有效性进行了分析.这为平流层飞艇流固耦合问题的研究提供了一种有效的分析工具,并对某平流层飞艇的突风干扰响应特性进行了分析,得出其流固耦合特性的变化规律.
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| 关 键 词： | 平流层飞艇 流固耦合 FLUENT ABAQUS NACA65A006 |
Study on Fluid-Structure Coupled Computational Method for Stratosphere Airship |
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| WANG Xiao-liang,SHAN Xue-xiong,CHEN Li.Study on Fluid-Structure Coupled Computational Method for Stratosphere Airship[J].Journal of Astronautics,2011,32(1). |
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| Authors: | WANG Xiao-liang SHAN Xue-xiong CHEN Li |
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| Institution: | WANG Xiao-liang1,SHAN Xue-xiong2,CHEN Li1(1.School of Aeronautics and Astronautics,Shanghai Jiao Tong University,Shanghai 200240,China,2.School of Naval Architecture,Ocean and Civil Engineering,Shanghai Jiaotong University,China) |
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| Abstract: | The stratosphere airships need a larger volume for the purpose of obtaining the buoyancy.Because of the inflated large membrane structure,the fluid-structure coupled characteristics are very important.Based on the Computational Fluid Dynamics(CFD) software FLUENT and Computation Structure Dynamics(CSD) software ABAQUS,a fluid-structure coupled computational method is proposed.To verify the validity of this method,the comparison between experimental and computational results of inflated sphere and NACA65A006... |
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| Keywords: | Stratosphere airship Fluid-structure coupled FLUENT ABAQUS NACA65A006 |
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