噪声与振动控制2016，Vol.36Issue(6)：97-100,4.DOI:10.3969/j.issn.1006-1335.2016.06.019
民用航空涡扇发动机静态喷气噪声预测
Static Jet Noise Prediction of a Civil Aviation Turbofan
闫国华 1邓波1
作者信息
- 1. 中国民航大学 中欧航空工程师学院，天津 300300
- 折叠
摘要
Abstract
Jet noise is one of the main noise sources of engines, which directly affects the airworthiness certification of the aircraft. The data of static engine noise can predict the noise level and the airworthiness of the aircraft. So, it can save much time and costs. In this paper, based on the STONE jet prediction model, a method for prediction of jet noise of a civil aviation turbofan is proposed. A corresponding Matlab program is written and utilized to predict the jet noise of the engine CFM56-7B, which is the competitive engine of aircraft C919. The accuracy of this method is verified by comparing the results with those of a real noise test.关键词
声学/喷气噪声/噪声预测/涡扇发动机/静态测试Key words
acoustics/jet noise/noise prediction/turbofan engine/static testing分类
航空航天引用本文复制引用
闫国华,邓波..民用航空涡扇发动机静态喷气噪声预测[J].噪声与振动控制,2016,36(6):97-100,4.
