高级传递路径分析方法在车内噪声控制中的应用  

Advanced Transfer Path Analysis Applied to Automotive Interior Noise Control

作　　者：兰靛靛 程栏 李宝江 黄玉辉 LAN Diandian;CHENG Lan;LI Baojiang;HUANG Yuhui(Department of Mechanical Engineering,Xiamen University of Technology,Xiamen 361024,Fujian China;Fujian Collaborative Innovation Center for R&D of Coach And Special Vehicle,Xiamen 361024,Fujian China;Beijing T&S Technologies Co.,Ltd.,Beijing 100102,China)

机构地区：[1]厦门理工学院机械与汽车工程学院,福建厦门361024 [2]福建省客车及特种车辆研发协同创新中心,福建厦门361024 [3]恒信大友(北京)科技有限公司,北京100102

出　　处：《噪声与振动控制》2019年第5期118-123,共6页Noise and Vibration Control

基　　金：福建省中青年教师教育科研资助项目(JAT170413)

摘　　要：与传统的传递路径分析相比,高级传递路径分析(Advanced Transfer PathAnalysis,ATPA)无需进行载荷识 别,是一种兼具精度与效率的新型传递路径分析方法。基于ATPA的理论,以某SUV车型为例,通过试验得到的总体 传递率函数计算各子系统对目标点的直接传递率函数,再结合测得的工况响应信号进行响应合成与贡献量分析。结 果表明:该车车内噪声的贡献源排序前三依次是前风挡,前右悬架减震器Z向和发动机辐射噪声。最后通过针对性的 优化措施,使车内噪声降低2.9dB(A),驾驶座噪声的实测结果验证了ATPA方法的准确性。Compared with the traditional transfer path analysis,Advanced Transfer Path Analysis(ATPA)method is a new type of transfer path analysis with high precision and efficiency.Based on the ATPA theory,with a general Sport Utility Vehicle(SUV)as an example,its Global Transmissibility Functions(GTFs)were measured through experiments and the Direct Transmissibility Functions(DTFs)from each sub-system towards the objective points were decoupled and calculated from these GTFs’results.The DTFs were subsequently synthesized and the contributions of each path was calculated and ordered by using the measured dynamic signal under the desired operational conditions.The results showed that the windscreen was the first great contribution source,followed by the Z direction of the front right suspension and the airborne noise of the engine.Finally,the interior noise was effectively reduced by 2.9 dB(A)through targeted optimizing measures,and the test of the interior noise verified the accuracy of the ATPA method.

关 键 词：声学 高级传递路径分析 总体传递率函数 直接传递率函数 车内噪声 

分 类 号：U461.4[机械工程—车辆工程]