噪声与振动控制2017，Vol.37Issue(6)：111-114,4.DOI:10.3969/j.issn.1006-1355.2017.06.023
涡轮增压发动机进气系统加速气流声识别和控制
Identification and Minimization of Whoosh Noise from a Turbo-charged Gasoline Engine
唐蓓 1邓兆祥 1金岩2
作者信息
- 1. 重庆大学 汽车工程学院,重庆 400044
- 2. 汽车噪声振动和安全技术国家重点实验室,重庆 400039
- 折叠
摘要
Abstract
The whoosh noise of the admission system of a turbo-charged gasoline engine in acceleration process is studied. Through filtering and replaying the interior noise from a car with the turbocharged gasoline engine, the contribution of each frequency band of the noise is identified by subjective evaluation. And the critical frequency bands are found. Noise sources of the critical bands are identified by applying insulation packages to different components of the admission system. It is found that the clean tube and the hot end of the high pressure tube of the air compressor are the main sources of the whoosh noise. Sound barrier and high frequency silencer are applied respectively to the clean tube and the high-pressure tube to suppress the whoosh noise. And the sound quality of the interior noise is remarkably improved.关键词
声学/涡轮增压器/进气系统气流噪声/主观评价/高频消声器Key words
acoustics/turbocharger/whoosh noise/subjective evaluation/high frequency silencer分类
数理科学引用本文复制引用
唐蓓,邓兆祥,金岩..涡轮增压发动机进气系统加速气流声识别和控制[J].噪声与振动控制,2017,37(6):111-114,4.
