汽车侧窗风振特性研究及控制  

Side window wind buffeting characteristics and reductions

作　　者：汪怡平[1,2] 谷正气[1] 杨雪[3] 

机构地区：[1]湖南大学汽车车身先进设计制造国家重点实验室,湖南长沙410082 [2]武汉理工大学汽车工程学院,湖北武汉430070 [3]武汉军械士官学校光电实验室,湖北武汉430075

出　　处：《空气动力学学报》2012年第3期277-283,共7页Acta Aerodynamica Sinica

基　　金：国家高技术研究发展计划(863)(2007AA04Z122);中央高校基本科研业务费专项资金资助(2012-IV-068);教育部长江学者与创新团队发展计划(531105050037);湖南省科技计划重大项目(06FJ2001)

摘　　要：在对参考车型进行道路试验的基础上,应用CFD(计算流体力学)技术对豪华轿车的侧窗风振特性进行了仿真分析,分析结果表明后窗的风振比前窗剧烈得多;考查了频率及其强度与车速、车内体积、侧窗开启位置、侧窗开启数目的关系。根据风振产生的机理,采用两种措施对后窗的风振进行了控制,风振压力脉动最大降低了9dB。Based on the road test of the reference model, the CFD technology was used to analyze the side windows buffeting characteristics, and the results showed that the rear window buffeting is much higher than the front one. Furthermore, the effects of several parameters on buffeting frequency and intensity were also studied. These parameters include vehicle speed, interior volume, the location of windows and numbers of opened windows. According to the mechanism of wind buffeting, two improvements were employed to reduce the rear window buffeting, and the maximal noise was reduced by 9dB.

关 键 词：计算流体力学 自激振荡 风振 侧窗 

分 类 号：V211.3[航空宇航科学与技术—航空宇航推进理论与工程]