基于声强技术的发动机噪声源识别研究  

A Study on the Noise Source Identification of Engine Based on Sound Intensity Technique

作　　者：孙嵩松[1] 李志远[1] 陆益民[1] 陈品[1] 

机构地区：[1]合肥工业大学噪声与振动研究所,合肥230009

出　　处：《汽车工程》2014年第1期48-50,106,共4页Automotive Engineering

摘　　要：利用声强法对某汽车发动机进行噪声源识别实验,并对测得的噪声信号进行频谱分析,最终确定该发动机的主要噪声源及其声功率级和噪声特性,为衰减该类型的发动机噪声提供指导。The sound intensity technique is used to conduct noise source identification experiment on a vehicle engine and frequency spectrum analysis on noise signals measured.In the end,the main noise sources and their sound power level and noise features of that engine are determined,providing a guide for the noise attenuation of that type of engine.

关 键 词：发动机 噪声源识别 声强法 

分 类 号：U464[机械工程—车辆工程]