某SUV格栅啸叫声试验研究  

Experimental Research on whistle of the Grille of a SUV

作　　者：黄晓胜 周万田 宋俊 叶斌 HUANG Xiao-sheng;ZHOU Wan-tian;SONG Jun;YE Bin(NVH Department of GAC R&D,GuangZhou 51140,China)

机构地区：[1]广汽研究院NVH部,广州51140

出　　处：《汽车科技》2021年第6期68-72,共5页Auto Sci-Tech

摘　　要：当汽车高速行驶时,风噪声对车内的影响将会超过路噪与动总噪声,成为最主要的噪声源。风噪声的构成复杂,在各种风噪声中,乘客对气动啸叫声的感知尤为明显。某纯电SUV在研发过程中出现高频啸叫声问题,本文以此为背景,通过道路试验的手段针对该问题采集车内外啸叫声相关声场信号;经过声源定位、问题解析、机理分析明确了啸叫声的来源及其幅频特性,找到了影响啸叫声大小的关键参数;基于此对格栅肋条结构进行优化设计,优化方案经过整车测试验证具有明显效果。The impact of wind noise inside the car will exceed the road noise and powertrain noise and become the main noise source on a high-speed road.Passengers’ perception of aerodynamic whistle is particularly more obvious than the others.A high-frequency whistle problem happened on an electric SUV during the development process.As result of that,this article will research on the problem by road testing.Through sound source localization,problem analysis,mechanism analysis and other methods,the optimization of the grille fin structure for whistle elimination and the scheme will be told.It is showed that the optimization methond has obvious effects by vehicle verification.

关 键 词：啸叫声 进气格栅 道路测试 SUV 

分 类 号：U463.4[机械工程—车辆工程]