某全机跨声速颤振模型颤振特性仿真与试验验证
Flutter characteristic simulation and experimental verification for transonic flutter model of a whole aircraft
查看参考文献15篇
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文摘
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针对某全机结构相似跨声速颤振模型,进行了有限元(FEM)模型结构模态分析和偶极子网格法(DLM)法颤振计算以及 CFD 方法的跨声速颤振特性仿真。在 FL-26风洞中完成了跨声速颤振风洞试验。通过试验结果与仿真结果的相关性分析,验证了一种全机复杂耦合的颤振形式。通过对基于 N-S 方程的跨声速颤振仿真程序进行评估与验证,证实在飞机非定常 CFD 仿真上取得了进展并且具有足够的精度。综合 CFD 仿真与跨声速颤振风洞试验,可以对全机复杂耦合的颤振特性进行工程颤振设计。 |
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其他语种文摘
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Transonic flutter simulation and transonic flutter wind tunnel test are the main techniques in the design process for the high maneuver aircraft. In this paper, the finite element method (FEM) based modal analysis, flutter calculation using doublet lattice method (DLM), and the transonic flutter simulation by CFD method are carried out for the structural similar flutter mode of a whole aircraft. The transonic flutter wind tunnel test is accomplished in FL-26 wind tunnel. By correlation analysis of the results by the numerical simulation with those of the wind tunnel test, a complex flutter mode of the whole aircraft is investigated and verified. The effectiveness and the accuracy of the Navier-Stokes equations based transonic CFD code with hybrid mesh are verified, and it shows the progress we have made on the unsteady aerodynamic CFD simulation of aircraft. Combining transonic flutter wind tunnel test with CFD simulation, the complex coupling flutter design for the whole aircraft could be accomplished. |
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来源
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空气动力学学报
,2014,32(3):364-368 【核心库】
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DOI
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10.7638/kqdlxxb-2012.0123
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关键词
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跨声速颤振
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全机结构相似颤振模型
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CFD颤振仿真
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跨声速颤振风洞试验
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N-S方程
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地址
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1.
沈阳飞机设计研究所, 沈阳, 110035
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中国科学院力学研究所, 北京, 100190
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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0258-1825 |
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学科
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航空 |
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文献收藏号
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CSCD:5173744
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