汽车变速箱齿轮系统噪声计算方法的研究  

Noise estimation and Analysis on Gear Transmission of motor vehicle

作　　者：汪中厚[1] 张郑恺[1] 张立平[1] 

机构地区：[1]上海理工大学机械工程学院,上海200093

出　　处：《机械传动》2012年第2期12-15,共4页Journal of Mechanical Transmission

基　　金：国家自然科学基金资助项目(51075279);上海市教委重点学科建设资助项目(J50503);上海市教委科研创新重点资助项目(10ZZ92)

摘　　要：针对汽车变速箱齿轮系统工作时的噪声问题,提出了一种定量计算变速箱齿轮系统噪声的方法,求解了该系统的振动方程,并利用Kato方程量化了变速箱齿轮系统的噪声主要来源,重点研究了在不同声源辐射模型下变速箱齿轮系统噪声的声功率大小。试验证明,该方法可较准确地对变速箱齿轮系统所产生振动噪声进行定量计算,为变速箱齿轮系统的降噪及优化设计提供了依据。The reason which produce the vibration and noise during the gearbox meshing process is expounded.The-time varying dynamic model of gear transmission is build.The influence of meshing stiffens and transmission error on vibration response is analyzed.Based on this the noise due to vibration is quantitative calculated by using Kato method.Computation results indicated that the semi-sphere noise radiation model is more precisely than the sphere one on the gear-transmission analysis.Finally,the experiment proved the former inference.It is shown that this method is a good ideal method for estimate the noise due to gear vibration,it provides basis for low noise design and noise-decreasing of gear system.

关 键 词：汽车变速箱 齿轮系统 噪声声源 辐射模型 

分 类 号：U463.212[机械工程—车辆工程]