基于声压原理的柴油发动机检测室噪声的测量、分析与治理  

Noise Measurement,Analysis and Denoise of Diesel Engine Testing Chamber Based on Sound Pressure Principle

作　　者：程道来[1] 周志浩[1] 杨帅[2] 纪林章[1,3] 王朝红 万守鹏 

机构地区：[1]上海应用技术学院城市建设与安全工程学院,上海201418 [2]同济大学汽车学院,上海201804 [3]上海理工大学能源与动力工程学院,上海200093 [4]浙江新柴股份有限公司技术中心,浙江新昌312500

出　　处：《上海应用技术学院学报（自然科学版）》2014年第2期132-136,共5页Journal of Shanghai Institute of Technology: Natural Science

基　　金：国家自然科学基金资助项目(61071203);"绿色能源与动力工程"学科团队建设市财政基金项目(1010K131001);企业委托项目基金(J2012-94)

摘　　要：以某新建成的柴油发动机检测室为对象,基于声压原理,对检测室中存在的强噪声、高轰鸣声进行测量分析.通过对多工况、多测点测量获得的数据和声频谱等图形比较分析,找出产生强噪声、高轰鸣声的原因,提出了解决方案和措施,达到了降噪、消除轰鸣声目的,改善了现场运行人员工作环境.Based on sound pressure principle, the noise measurement, analysis and denoise of a diesel engine performance testing chamber were presented. Firstly, comparative analysis of noise intensity and their frequency spectrum were measured and analyzed in detail in different operation status and multimeasurement points （place）. Then, the cause of strong noise and reverberation existing in the diesel engine performance testing chamber was found. Finally, some scheme and methods were put forward accordingly. The chamber＇s noise reduction and reverberation elimination were attained, and the environment condition of personnel were ameliorated.

关 键 词：汽车 柴油发动机 声压法 噪声测量 消声器 

分 类 号：U467.522[机械工程—车辆工程] TB535[交通运输工程—载运工具运用工程]