Moore响度在车内噪声分析中的应用  

Application of moore loudness in a vehicle interior noise analysis

作　　者：徐中明[1,2] 周小林[1] 张芳[1] 贺岩松[1,2] 李传兵[2,3] 

机构地区：[1]重庆大学机械传动国家重点实验室,重庆400030 [2]汽车噪声振动和安全技术国家重点实验室,重庆400039 [3]重庆长安汽车有限公司,重庆400023

出　　处：《振动与冲击》2013年第1期169-173,共5页Journal of Vibration and Shock

基　　金：国家自然科学基金(50975296);汽车噪声振动和安全技术国家重点实验室开放基金(NVHSKL-201010)联合资助

摘　　要：针对某客车变速器异响噪声的非稳态特性,在ANSI_S3.4 2005标准基础上建立了Moore瞬时响度模型,并引入目前主流声学软件采用的Zwicker响度模型进行对比验证,最后将瞬时响度模型应用于车内噪声信号的识别及其定量评价。结果表明:Moore响度模型计算精度及其瞬时特征响度谱能量分布的清晰度均比Zwicker模型的结果更高,采用Moore瞬时响度有助于非稳态过程中的噪声源识别及噪声机理分析,用Moore响度来定量评价噪声具有可行性。To analyze the abnormal noise with unsteady characteristics in a bus＇s transmission, a Moore instantaneous loudness model was established based on standard of ANSI_S3.4 2005, and a Zwicker loudness model was cited for validation contrast, then the instantaneous loudness model was applied to a vehicle interior noise identification and its quantitative evaluation. The results showed that the calculation accuracy and instantaneous specific loudness of Moore model are better than those of Zwicker one, Moore instantaneous loudness model is helpful for noise source identification and its mechanism analysis in an unsteady process, and it＇ s feasible to use Moore loudness for noise quantitative evaluation.

关 键 词：响度 汽车 噪声识别 定量评价 

分 类 号：U467[机械工程—车辆工程]