测点位置对汽车风洞风噪测试结果的影响  

The Influence of Measurement Point Location on the Wind Noise Test Results of Automotive Wind Tunnels

作　　者：张亮 李昌 张祥东 王海洋 ZHANG Liang;LI Chang;ZHANG Xiangdong;WANG Haiyang(CATARC(Tianjin)Automotive Engineering Research Institute Company Limited,Tianjin 300300,China;Guangzhou Toyata Motor Company Limited,Guangzhou 511455,China)

机构地区：[1]中汽研(天津)汽车工程研究院有限公司,天津300300 [2]广汽丰田汽车有限公司,广东广州511455

出　　处：《汽车实用技术》2024年第12期112-116,共5页Automobile Applied Technology

摘　　要：随着汽车风洞技术的发展及汽车风洞数量的增多,汽车风洞风噪测试逐步成为汽车风噪开发的主要试验手段。文章基于汽车风洞风噪测试,研究了测点位置对测试结果的影响。研究发现,车内人工头在X方向位置变化时总声压级、语音清晰度和响度变化小,但频谱特性曲线有差异;声压级和响度在Z方向位置随高度增加而升高,语音清晰度随高度增加而降低;车外远场麦克风在Y向距离测力天平中心越远,声压级越低。With the development of automotive wind tunnel technology and the increase in the number of automotive wind tunnels,wind noise testing in automotive wind tunnels has gradually become the main testing method for automotive wind noise development.The article is based on wind noise testing in automotive wind tunnels and investigates the influence of measurement point positions on test results.Study is found that when the position of the artificial head inside the car changes in the X direction,the total sound pressure level,articulation index,and loudness change slightly,but there are differences in the spectral characteristic curves.The sound pressure level and loudness all show a increasing trend with increasing height in the Z direction,and articulation index show a decreasing trend.The farther the far-field microphone outside the automotive is from the center of the force balance in the Y direction,the lower the sound pressure level will be.

关 键 词：测点位置 汽车风洞风噪测试 气动声学风洞 车内气动噪声 

分 类 号：U469.7[机械工程—车辆工程]