某SUV车型后视镜气动噪声性能控制  

Aerodynamic Noise Control of a SUV Rearview Mirror

作　　者：徐鹏[1,2] 李春花[1,2] 赵伟丰 刘二宝[1,2] 李晓鹏[1,2] 蔡礼刚[1,2] 

机构地区：[1]长城汽车股份有限公司技术中心 [2]河北省汽车工程技术研究中心

出　　处：《汽车工程师》2014年第11期37-39,43,共4页Automotive Engineer

摘　　要：以优化汽车气动噪声性能为目的,文章基于气动噪声混合计算方法,借助CFD软件进行了某SUV车型外流场分析,将外流分析数据导入LMS Virtual.Lab Acoustic声学有限元模块进行后视镜气动噪声对车内声场的影响研究,通过流场与声场的耦合求解,完成车内监测点的声压频谱计算,并与试验数据进行对比发现,仿真结果能够为后视镜造型优选提供较为可信的依据。The purpose of this paper is to optimize the aerodynamic noise of vehicle. On the basis of the mixed computation of aerodynamic noise, using CFD software to analyze external flow field of SUV was described, and the analysis data obtained from external flow field was put into LMS Virtual Lab Acoustic to analyze the influence of aerodynamic noise for the rearview mirror on vehicle interior acoustic field. The acoustic pressure spectrum was calculated through the flow field and acoustic field coupling, and making comparison with the test data, it found that the simulation results can provide an available foundation for the styling selection, this method will play an important role in the optimization of rearvicw mirror styling.

关 键 词：气动噪声 混合计算 后视镜 耦合求解 

分 类 号：U463.856[机械工程—车辆工程]