| 涡桨飞机气动噪声的预估方法 |
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| 引用本文： | 王天波,夏冰,杜晨曦,丁亚修.涡桨飞机气动噪声的预估方法[J].科学技术与工程,2023,23(27):11870-11877. |
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| 作者姓名： | 王天波 夏冰 杜晨曦 丁亚修 |
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| 作者单位： | 中航西飞民用飞机有限责任公司 西安 710089 |
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| 摘 要： | 本文对基于气动声学基础理论的涡桨飞机气动噪声预估方法进行了研究,发展了一种增升装置、起落架等机体部件噪声模型,建立了考虑迎角、机翼诱导干扰的螺旋桨噪声源模型,并结合等效噪声源法(ESM)方法考虑机体对螺旋桨噪声的散射,形成涡桨飞机气动噪声预估程序。采用某型涡桨飞机的噪声飞行试验数据进行了对比验证,预估结果相对于飞行结果在适航噪声测量点处的误差不超过2dB,表明了该噪声计算程序具备较高的预测精准度。
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| 关 键 词： | 涡桨飞机，气动噪声，预估方法 |
| 收稿时间： | 2022/5/3 0:00:00 |
| 修稿时间： | 2023/7/25 0:00:00 |
Prediction Method of Turboprop Aircraft Aeroacoustic Noise |
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| Wang Tianbo,Xia Bing,Du Chenxi,Ding Yaxiu.Prediction Method of Turboprop Aircraft Aeroacoustic Noise[J].Science Technology and Engineering,2023,23(27):11870-11877. |
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| Authors: | Wang Tianbo Xia Bing Du Chenxi Ding Yaxiu |
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| Affiliation: | AVIC XAC Commercial Aircraft CO.,Ltd,Xi |
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| Abstract: | The prediction method of turboprop aircraft noise based on aeroacoustics theory is presented in this paper. The noise models of high-lift device and landing gear are established to predict airframe noise. The propeller noise model considering the affections of angular inflow and wing-induced flow is used to predict the propeller noise, and combines with the Equivalent Source Method (ESM) to compute the acoustic scattering of propeller noise by airframe. The flight test noise data of propeller airplane is used to verify the prediction codes. The prediction results agree well with flight test data with a difference less than 2 dB at certification points. |
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| Keywords: | Turboprop Aircraft Aeroacoustics Noise Prediction Method |
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