基于LMS Pimento的某柴油机噪声测试及分析  

Noise Test and Analysis of a Diesel Engine Based on LMS Pimento

作　　者：侯政良[1] 冯垣洁 杨志强 王婷 HOU Zhengliang;FENG Yuanjie;YANG Zhiqiang;WANG Ting(Naval Equipment Department,Datong 037036;China North Engine Research Institute,Tianjin 300400;Shanxi Diesel Engine Industry Co.,Ltd.,Datong 037036)

机构地区：[1]海军装备部,山西大同037036 [2]中国北方发动机研究所,天津300400 [3]山西柴油机工业有限责任公司,山西大同037036

出　　处：《内燃机》2020年第6期38-41,共4页Internal Combustion Engines

摘　　要：为研究某柴油机噪声情况,对其进行了噪声测试试验,并使用LMS Pimento分析系统进行数据分析。研究表明,该柴油机下箱体以及油底壳噪声辐射较大,主要噪声是由燃烧激励引起的响应,且噪声变化随外特性转速点的增加增量平稳。In order to study the noise of a diesel engine,a noise test was carried out on it,and the data analysis was carried out using the LMS Pimento analysis system.Research showed the lower casing and oil pan of the diesel engine have relatively large noise radiation.The main noise is the response caused by combustion excitation,and the change of noise increases smoothly with the increase of the external characteristic speed point.

关 键 词：LMS Pimento 柴油机噪声试验 

分 类 号：TK427[动力工程及工程热物理—动力机械及工程]