| 一种建立非定常气动力频域模型的简单方法 |
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| 引用本文： | 陈青.一种建立非定常气动力频域模型的简单方法[J].空气动力学学报,1988(4). |
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| 作者姓名： | 陈青 |
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| 作者单位： | 北京航空学院 |
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| 摘 要： | 本文给出的方法,线化了非定常气动力的karpel近似式的非线性部分,并吸取了Roger近似式中同一矩阵各元素独立确定以得到较高精度的特点。它不仅简化了拟合中的计算,改善了拟合精度,还保持了Karpel方法所引入的最小阶次。
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| 关 键 词： | 非定常气动力学 气动弹性 数值计算法 |
AN EFFECTIVE MODELING METHOD OF UNSTEADY AERODYNAMICS FOR STATE - SPACE AEROELASTIC MODELS |
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| Chen Qing.AN EFFECTIVE MODELING METHOD OF UNSTEADY AERODYNAMICS FOR STATE - SPACE AEROELASTIC MODELS[J].Acta Aerodynamica Sinica,1988(4). |
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| Authors: | Chen Qing |
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| Institution: | Beijing University of Aeronautics and Astronautics |
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| Abstract: | This paper presents an effective method for linearizing the karpel's non-linear model and combinning the advantage of Roger's approximate method which can get high accuracy by solving elements of a same coefficient matrix independently. The method simplifies the fitting calculation and improves the accuracy of results. Also it has the property of Karpel's minimum number of argumented states. Numerical results are given for the two-dimensional case and the three-dimensional case. |
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| Keywords: | unsteady aerodynamics aeroelasticity numerical method |
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