基于虚拟传递路径分析的商用车加速通过噪声优化控制  

Optimization Control of Commercial Vehicle Accelerated Passing Noise Based on Virtual Transfer Path Analysis

作　　者：唐荣江[1] 刘威亚 黄莉 郑伟光[1] 王青青 施朝坤 TANG Rong-jiang;LIU Wei-ya;HUANG Li;ZHENG Wei-guang;WANG Qing-qing;SHI Chao-kun(School of Mechanical & Electrical Engineering, Guilin University of Electronic Technology, Guilin 541000, China;R&D Center of Commercial Vehicle, Dong Feng Liuzhou Automobile Co. , Ltd. , Liuzhou 545000, China)

机构地区：[1]桂林电子科技大学机电工程学院,桂林541000 [2]东风柳州汽车有限公司商用车技术中心,柳州545000

出　　处：《科学技术与工程》2020年第32期13447-13453,共7页Science Technology and Engineering

基　　金：广西壮族自治区中青年教师基础能力提升项目(2018KY0205);广西青年科学基金(2018GXNSFBA281012);柳州市科学研究与计划开发项目(2018AA20301,2018AA10502);广西创新驱动发展专项资金项目(桂科AA19182004)。

摘　　要：为实现商用车加速通过噪声的精准降噪,需要确定各噪声源对通过噪声的贡献量及主要噪声源。针对传统商用车噪声源贡献量分析实验方法效率低、测量成本大等问题,提出一种商用车加速通过噪声虚拟传递路径分析方法。利用有限元仿真模型求解噪声源与响应点之间的传递函数,依据实测声源数据求解各噪声源在响应点处的贡献量。并采用麦克风阵列声源定位技术,定位主要噪声源,验证该方法的正确性。最后依据虚拟传递路径分析结果进行了降噪方案设计及仿真,可达到2~6 dB(A)的降噪效果。In order to reduce noise for accelerated commercial vehicles accurately,it is necessary to determine the contribution of each noise source to the passing noise and the main noise source.Based on the problems of low efficiency and high measurement cost to experimental methods of traditional commercial vehicles’noise source contribution,a virtual transmission path analysis method for accelerating the passing noise of commercial vehicles was proposed.The finite element simulation model was used to solve the transfer function between the noise source and the response point,and the contribution of each noise source at the response point was calculated based on the measured sound source data.The microphone array sound source localization technology was used to locate the main noise sources,and the correctness of the method was verified.Finally,the design and simulation of the noise reduction scheme were carried out based on the analysis results of the virtual transmission path,which could reduce the noise to 2 dB(A)to 6 dB(A).

关 键 词：车外加速噪声 虚拟传递路径分析 贡献量分析 噪声源定位 优化控制 

分 类 号：U467[机械工程—车辆工程]