某SUV后视镜镜臂气动噪声试验

doi:10.3969/j.issn.1000-1565.2022.01.012

河北大学学报(自然科学版) ›› 2022, Vol. 42 ›› Issue (1): 85-90.DOI: 10.3969/j.issn.1000-1565.2022.01.012

某SUV后视镜镜臂气动噪声试验

刘海军^1,2, 郭航¹,彭兴芝¹, 吴杨¹

收稿日期:2021-03-04 发布日期:2022-02-22
通讯作者: 彭兴芝(1979—)
作者简介:刘海军(1979—),男,河南商丘人,河北大学副教授,博士后,主要从事车辆气动噪声与舒适性研究.
E-mail: dadingzichi@163.com
基金资助:
河北省自然科学基金资助项目(QN2014185)

Experimental on aerodynamic noise of side-mirror arm of a SUV

LIU Haijun^1,2, GUO Hang¹, PENG Xingzhi¹, WU Yang¹

1. College of Civil Engineering and Architecture, Hebei University, Baoding 071002, China; 2.Hebei Automobile Technology Research Center, Technological Center of Great Wall Automobile Co., Ltd., Baoding 071000, China

Received:2021-03-04 Published:2022-02-22

摘要/Abstract

摘要： 汽车在高速行驶(速度超过100 km/h)时,气动噪声对车内噪声环境影响起主导作用.因此,对车外噪声源的控制显得尤为重要.采用试验的方法,研究了后视镜的镜臂不同长度参数对车内噪声环境影响的变化规律,推导出后视镜镜臂参数与车内声能量、语言清晰度呈对数变化规律,且响度呈现出非线性变化规律,得到了后视镜镜臂长度参数控制在40~50 mm,声压级减小0.6 dB(A)约0.5%,语言清晰度提高5.4%,AI相对贡献9%~14%,响度降低0.5~0.6宋,相对贡献1.7%~2.1%.初步获得后视镜镜臂长度参数的控制技术,改善了车内的噪声环境,提高了车内的声品质.

关键词: 气动噪声, 声学, 风洞, 后视镜镜臂

Abstract: When a car runs at a high speed more than 100 km/h, the aerodynamic noise produced by the interaction of air flow and car 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. The correlation between aerodynamic of the SUV rear mirror arm length and the interior noise environment of the vehicle was studied by the experimental method. The results show that the relationship between the parameters of the rear mirror arm length and sound energy is logarithmic. The relationship between the parameters of the rear mirror arm length and articulation is logarithmic, too. The relationship between the parameters of the rear mirror arm length and loudness follows quadratic equation. When the rear mirror arm length is controlled to be between 40~50 mm, the sound pressure level is reduced by 0.6 dB(A), the relative improvement is about 0.5%, the articulation is increased by 5.4% AI, the relative change is 9%~14%, the loudness is reduced by 0.5~0.6 sone, and the relative improvement is about 1.7%~2.1%. The technical method of the controlling aerodynamic noise in the rear mirror arm length has been obtained preliminarily. The technology reduces the noise in the car and improves the sound quality of the SUV.

Key words: aerodynamic noise, acoustics, wind tunnel, rear mirror arm length

中图分类号:

U461.1

刘海军, 郭航,彭兴芝, 吴杨. 某SUV后视镜镜臂气动噪声试验[J]. 河北大学学报(自然科学版), 2022, 42(1): 85-90.

LIU Haijun, GUO Hang, PENG Xingzhi, WU Yang. Experimental on aerodynamic noise of side-mirror arm of a SUV[J]. Journal of Hebei University(Natural Science Edition), 2022, 42(1): 85-90.

参考文献

[1] LIGHTHILL M J. On sound generated aerodynamically I. General theory[J]. Mathematical and Physical Sciences, 1952, 211(1107): 564-587. DOI: 10.1098/rspa.1952.0060.
[2] LIGHTHILL M J. On sound generated aerodynamically I. Turbulence as a source of sound[J]. Mathematical and Physical Sciences, 1954, 222(1148): 1-32. DOI: 10.1098/rspa.1954.0049.
[3] MARIE CABOOL, YVES DETENT. A comparison between defects of Turbulent and Acoustic wall pressure actuations inside a car[Z]. 18th AIAA Aeroacoustics conference, Colorado Springs, 2012.
[4] GUIDATI S, SOTTEK R. Advanced source localization techniques using microphone arrays[J]. SAE Int J Passeng Cars-Mech Syst, 2011, 4(2): 1241-1249. DOI:10.4271/2011-01-1657.
[5] LEPLEY D, SENTHOORAN S, HENDRIANA D, et al. Numerical simulations and measurements of mirror-induced wind noise[J]. SAE Int J Passeng Cars-Mech Syst, 2009, 2(1): 1550-1562. DOI:10.4271/2009-01-2236.
[6] ADAM J, RICOT D, LAMBOURG C, et al. Correlated Beamforming Method for Relevant Aeroacoustic Sources Identification[Z].SAE 2009 Noise and Vibration Conference andExhibition,St Charles,Illinois,2009.
[7] LI L Z, LI J, LU B W,et al. Application of Beamforming to Side Mirror Aeroacoustic Noise Optimization[Z].SAE 2016 World Congress and Exhibition, Detroit, 2016.
[8] TOMAC M N, YUGULIS K, GREGORY J W, et al. Investigation of vibration phenomena induced by air flow over side view mirror[J]. J Fluids Eng, 2011, 133(12): 121102. DOI:10.1115/1.4005425.
[9] RICHARD WALKER, WEI WEI. Optimization of mirror angle for front window buffeting and wind noise using experimental menthods[Z]. Noise and Vibration Conference and Exhibition, Charles, Illinois, 2007.
[10] HARTMANN M, OCKER J, LEMKE T, et al. Wind Noise Caused by the A-pillar and the Side Mirror Flow of a Generic Vehicle Mode[Z].18th AIAA/CEAS Aeroacoustic Conference,Colorado Springs, 2012.
[11] TERAKADO S, MAKIHARA T, SUGIYAMA T, et al. Experimental investigation of aeroacoustic cabin noise in unsteady flow by means of a new turbulence generating device[J]. SAE Int J Passeng Cars Mech Syst, 2017, 10(1): 309-317. DOI:10.4271/2017-01-1545.
[12] 李启良,杨志刚,陈枫. 汽车后视镜流场的试验与数值研究[J].同济大学学报(自然科学版), 2011, 39(7): 1045-1049. DOI:10.3969/j.issn.0253-374x.2011.07.019.
[13] 王毅刚,杨超,杨志刚,等.汽车外表面气动噪声特性分析[J].声学技术, 2014, 33(1): 50-55. DOI:10.3969/j.issn1000-3630.2014.01.011.
[14] 陈鑫,冯晓,沈传亮,等.车外后视镜造型对气动噪声影响的实验研究[J].汽车工程, 2017, 39(2): 206-213. DOI:10.19562/j.chinasae.qcgc.2017.02.014.
[15] 贺银芝,杨志刚,王毅刚.某轿车车内气动噪声特性的试验研究[J].汽车工程, 2016, 38(1): 72-77. DOI:10.19562/j.chinasae.qcgc.2016.01.012.
[16] 贺银芝,董国旭,张涛,等.汽车车内噪声与车外气动声源的相关性研究[J].汽车工程, 2017, 39(10): 1192-1197. DOI:10.19562/j.chinasae.qcgc.2017.10.015.
[17] 刘海军,任秉银,徐旭,等.某SUV型汽车后视镜气动噪声数值仿真[J].哈尔滨工业大学学报, 2016, 48: 35-39.
[18] 陈鑫,阮新建,汪硕,等.仿生非光滑车外后视镜罩气动减阻降噪机理研究[J].湖南大学学报(自然科学版), 2020, 47(4): 16-23. DOI:10.16339/j.cnki.hdxbzkb.2020.04.003.
[19] DUAN M H, LAI C G,WANG Y. Numerical analysis of aerodynamic noise in the external and internal fields of a SUV[J]. MachineTool & Hydraulics, 2020, 48(6): 78-84.
[20] 唐荣江,胡宾飞,张淼,等.基于A柱-后视镜车内气动噪声数值模拟与预测[J]. 汽车工程, 2020, 42(4): 522-530. DOI:10.19562/j.chinasae.qcgc.2020.04.015.
[21] 袁海东, 杨志刚,李启良.汽车前侧窗表面压力激励及其源分析[J].湖南大学学报(自然科学版), 2019, 46(8): 9-19. DOI:10.16339/j.cnki.hdxbzkb.2019.08.002.
[22] 王毅刚,黄晓胜,危巍,等. 涡声理论在汽车A柱气动噪声优化中的应用[J].噪声与振动控制, 2017, 37(2): 107-112. DOI:10.3969/j.issn.1006-1355.2017.02.022. (

某SUV后视镜镜臂气动噪声试验

Experimental on aerodynamic noise of side-mirror arm of a SUV

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 0

编辑推荐

Metrics

本文评价