传递路径分析技术在车内噪声与振动研究与分析中的应用  

Applying Transfer Path Analysis to Automotive Interior Noise and Vibration Refinement and Development

作　　者：刘东明[1] 项党[1] 罗清[1] 郑金鑫[2] 

机构地区：[1]泛亚汽车技术中心有限公司,上海201201 [2]上海航天局研发中心,上海200233

出　　处：《噪声与振动控制》2007年第4期73-77,共5页Noise and Vibration Control

摘　　要：阐述试验传递路径分析的基本原理,结合LMS/TPA模块的功能,分别介绍结构声和空气声载荷的估计算法及其适用范围,并具体介绍典型传递路径分析的实施步骤,可获得的信息及其在车辆噪声优化设计与早期开发中起到的指导作用。This article describes the fundamental theory of Transfer Path Analysis(TPA).With the introduction of the latest functions of LMS TPA software tool,the analyzing of structural borne noise or air borne noise contribution to the overall vehicle NVH performance can be done by estimating their operational load and each of their individual FRF.A typical experimental procedure of structural borne TPA is presented in great details for demonstration purpose.The information obtained through this process can be utilized to optimize the NVH performance even the early vehicle design stage.

关 键 词：声学 汽车 传递路径分析(TPA) 工作载荷估计 LMS/TPA模块 

分 类 号：U467.4+93[机械工程—车辆工程]