摘要
随着汽车发动机与轮胎路面噪声控制方法的研究与应用,汽车风噪声对车内声环境的影响越来越显著.风噪声对车内的作用分为声壁面脉动压力、湍流壁面脉动压力2种机理.选择一款车型,采用通用CFD软件与Actran相结合的方法,对其车内风噪声影响进行计算,并在后处理中分析2种机理导致的声源对车内驾驶员人耳处的噪声贡献率.
Nowadays, with the control method＇ s research and application of engine and tire road noise, the automobile wind noise becomes more and more significant in the car sound environment. The wind noise affecting the interior environment is divided into two kind of mechanisms ： the sound wall fluctuation pressure and the turbulence wall fluctuation pressure. To calculate of wind noise, the interior wind noise is calculated by combining general CFD software with Actran. Using the AWPF and TWPF are calculation on the basis of CFD calculations, and sound source noise contribution rates of the two mechanisms on car driver SPL are calculated by the post-processing to analysis.
出处
《计算机辅助工程》
2013年第A01期124-130,138,共8页
Computer Aided Engineering
