| 大振幅非定常实验数学模型与动导数仿真实验 |
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| 引用本文： | 黄达,李志强,吴根兴.大振幅非定常实验数学模型与动导数仿真实验[J].空气动力学学报,1999,17(2):219-223. |
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| 作者姓名： | 黄达 李志强 吴根兴 |
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| 作者单位： | 南京航空航天大学,南京,210016 |
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| 摘 要： | 本文通过对大振幅非定常实验数据进行处理，采用Ｄｕｈａｍｅｌ积分方法，可获取模型迎角按任意 规律变化时的非定常空气动力，并在此基础上，发展了一种从大振幅实验获得小振幅导数的新方法。
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| 关 键 词： | 非定常空气动力学 大振幅 动导数 数学模型 |
Dynamic Derivative Simulation and Mathematical Model of the Wind Tunnel Test about a Model Pitching in very Large Amplitude |
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| Huang Da,Li Zhiqiang,Wu Genxing.Dynamic Derivative Simulation and Mathematical Model of the Wind Tunnel Test about a Model Pitching in very Large Amplitude[J].Acta Aerodynamica Sinica,1999,17(2):219-223. |
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| Authors: | Huang Da Li Zhiqiang Wu Genxing |
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| Abstract: | The unsteady aerodynamic mathematical model is obtained using the Duhamel integral method on the basis of the unsteady aerodynamic data gathered from the low speed wind tunnel test in which the model is pitching in a very large amplitude.Then a new method of drawing the dynamic derivative from the unsteady aerodynamic mathematical model is developed.Using this new method,the dynamic derivetive at various angles,amplitude,and frequencies can be simulated. |
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| Keywords: | unsteady aerodynamic dynamic derivative mathematical model simulation large amplitude |
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