| 大气紊流数字仿真的改进方法 |
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| 引用本文： | 马东立.大气紊流数字仿真的改进方法[J].北京航空航天大学学报,1990(3):57-63. |
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| 作者姓名： | 马东立 |
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| 作者单位： | 北京航空航天大学飞行器设计与应用力学系 |
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| 摘 要： | 赵震炎等提出了一种数字摸拟Dryden大气紊流的方法。该方法使用方便,并具有一定的理论基础。但是在某些步长情况下它的相关函数和Dryden模型的理论值吻合得还不够令人满意。本文从理论上分析了产生误差的原因,并且提出了改进的方法。通过相关性检验可以看到改进后的仿真结果非常符合Dryden谱的大气紊流模型。
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| 关 键 词： | 大气紊流 数字仿真 飞行模拟器 |
AN IMPROVEMENT OF THE DIGITAL SIMULATION METHOD FOR ATMOSPHERIC TURBULENCE |
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| Ma Dongli.AN IMPROVEMENT OF THE DIGITAL SIMULATION METHOD FOR ATMOSPHERIC TURBULENCE[J].Journal of Beijing University of Aeronautics and Astronautics,1990(3):57-63. |
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| Authors: | Ma Dongli |
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| Institution: | Dept. of Flight Vehicle Design and Applied Mech. |
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| Abstract: | Professor Zhao Zhenyan has advanced a digital simulation method for Dryden atmospheric turbulence.This method is very convenient in use and possesses a considerably firm theoretical foundation.But for some time-step-lengths,its autocorrelation functions are not satisfactorily coincident with the theoretical values.The causes of error are analysed on a theoretical basis and an improved method is presented.Through the verification of autocorrelation property,we can find the improved simulation results are found very close to those of Dryden atmospheric turbulence model. |
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| Keywords: | atmospheric turbulence atmospheric disturbance digital simulation flight simulator |
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