| Motycka估算方法中滤波位置改变对最大瞬时畸变值预测的影响 |
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| 引用本文： | 梁德旺,张世英.Motycka估算方法中滤波位置改变对最大瞬时畸变值预测的影响[J].南京航空航天大学学报,1989(2). |
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| 作者姓名： | 梁德旺 张世英 |
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| 作者单位： | 南京航空学院动力工程系
(梁德旺)，南京航空学院动力工程系(张世英) |
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| 摘 要： | 将Motycka方法中脉动压力滤波改为瞬时畸变滤波可减少其估算机时。本文从理论上建立了上述两种滤波位置所获得的瞬时畸变的随机统计参数和最大值之间的关系,用计算所得结果进行了验证。验证表明可用瞬时畸变滤波方法替代脉动压力滤波方法去估算最大瞬时畸变值。
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| 关 键 词： | 发动机进气道 流动畸变 预估技术 瞬时畸变滤波 |
The Effects of changing the Filtering position in Motycka Method on the Prediction of Maximum Instantaneous Distortion |
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| Liang Dewang Zhang Shiying.The Effects of changing the Filtering position in Motycka Method on the Prediction of Maximum Instantaneous Distortion[J].Journal of Nanjing University of Aeronautics & Astronautics,1989(2). |
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| Authors: | Liang Dewang Zhang Shiying |
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| Institution: | Department of Power Engineering |
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| Abstract: | Computing time can be greatly reduced if the filtering of fluctuating pressure in Motycka method of predicting maximum instantaneous distortion is modified by filtering of instantaneous distortion. Jn this paper, mathematical relations between statistical properties of the instantaneous distortion and its maximum value while changing the above mentioned filtering position are analytically established and proved by the actual prediction. It is shown that the filtering of fluctuating pressure in Motycka method can be modified by the filtering of instantaneous distortion in the prediction of the maximum instantaneous distortion values. |
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| Keywords: | engine inlet flow distortion prediction technique instantaneous distortion filtering |
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