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| 柴油机燃烧噪声与机械噪声的识别及其对整机噪声贡献度的实验研究 | |
| 引用本文： | 于文英,单宝龙,王霞. 柴油机燃烧噪声与机械噪声的识别及其对整机噪声贡献度的实验研究[J]. 小型内燃机与摩托车, 2011, 40(1): 90-96 |
| 作者姓名： | 于文英 单宝龙 王霞 |
| 作者单位： | 1. 河北工业大学,机械学院,天津,300030 2. 天津市公安局车辆管理所 3. 天津大学机械学院 |
| 摘 要： | 发动机噪声源的识别是噪声控制领域的一项关键技术,传统的识别方法多是用来识别发动机的主要辐射噪声部件,但不能识别辐射噪声的类型。采用实验研究的方法成功地分离了柴油机的燃烧噪声与机械噪声并识别出了柴油机在不同的运行工况下燃烧噪声与机械噪声对整机噪声声功率的贡献度。研究结果表明,在高辐射噪声运行工况时,机械噪声是发动机噪声的主要成份,因此,针对柴油机的噪声控制首先要控制柴油机的机械噪声。 |
| 关 键 词： | 噪声分离 声功率贡献度 噪声识别 燃烧噪声 机械噪声 柴油机 |
Experimental Study of Separation and Contribution of Combustion & Mechanical Noise in a Diesel Engine |
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| Yu Wenying,Shan Baolong,Wang Xia. Experimental Study of Separation and Contribution of Combustion & Mechanical Noise in a Diesel Engine[J]. Small Internal Combustion Engine and Motorcycle, 2011, 40(1): 90-96 | |
| Authors: | Yu Wenying Shan Baolong Wang Xia |
| Affiliation: | Yu Wenying1,Shan Baolong2,Wang Xia3 1-Hebei University of Technology(Tianjin,300030,China) 2-Vehicle Management Station,Tianjin Municipal Public Security Bureau 3-Tianjin University |
| Abstract: | The identification of engine noise is a key technique that presents on controlling all kinds of noise with different ways.Traditionally,many identifying methods are used to diagnose the main radiated noise sources of the engine without considering the category of noise.This paper presents a method that could separate the combustion and mechanical noise from the diesel engine noises and identify their contribution to the engine sound in different running speed and load.The results show that in the case of hi... |
| Keywords: | Noise separation Sound power contribution Noise identification Combustion noise mechanical noise Diesel engine |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |