文章摘要
刘海军,孙富强,吴杨.某SUV轮罩区域气动噪声试验研究[J].声学技术,2021,40(2):234~239
某SUV轮罩区域气动噪声试验研究
Experiment research on aerodynamic noise of SUV wheelhouse area
投稿时间:2020-02-13  修订日期:2020-04-15
DOI:10.16300/j.cnki.1000-3630.2021.02.014
中文关键词: 流体力学  声学  风洞  气动噪声  轮罩
英文关键词: hydrodynamics  acoustics  wind tunnel  aerodynamic noise  wheelhouse
基金项目:河北省基金资助项目(QN2014185)
作者单位E-mail
刘海军 河北大学建筑工程学院, 河北保定 071002
长城汽车股份有限公司, 河北省汽车工程技术研究中心, 河北保定 071000 
dadingzichi@163.com 
孙富强 河北大学建筑工程学院, 河北保定 071002  
吴杨 河北大学建筑工程学院, 河北保定 071002  
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中文摘要:
      汽车高速行驶的过程中,速度超过100 km·h-1时,气动噪声对车内噪声环境的贡献起主导作用,突显出气动声源的研究与控制的重要性。采用试验与数值计算相结合的方法研究了轮罩区域的气动噪声与车内噪声环境的相关性,推导出了轮罩区域气动噪声的频率公式的修正系数与风速的关系,得到轮罩区域气动噪声对前排乘客舒适性影响较小,对后排乘客位的舒适性影响较大的结论。初步获得了轮罩区域气动噪声的控制技术,该技术一定程度上抑制了轮罩区域的气动噪声,改善了车内的噪声环境,提高了车内的声品质。
英文摘要:
      When a vehicle runs at a high speed more than 100 km·h-1, the aerodynamic noise produced by the interaction of air flow and vehicle body plays a leading role in the noise contribution of the vehicle, so it is very important to control the aerodynamic noise source outside the vehicle. Through the study of the relativity between aerodynamic noise of the SUV wheelhouse area and the interior noise environment of the vehicle by experimental and numerical methods, the relationship between the coefficient of the frequency formula of aerodynamic noise of SUV wheelhouse area and the vehicle speed is derived. It is concluded that the aerodynamic noise of the SUV wheelhouse area has less influence on the comfort of the front passengers, but a greater influence on the comfort and sound quality of the rear passengers. The technical method of controlling aerodynamic noise in the wheelhouse area has been obtained preliminarily, which can suppress the aerodynamic noise of SUV wheelhouse area to a certain extent, reduces the noise in the car and improves the sound quality of the SUV.
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