CA6102型汽油机噪声源识别及其降噪措施  

Distingguishing the Noise Source of Model CA6102 Gasoline Engine and the countermeasure of Noise Suppression

作　　者：梁杰[1] 李善祯 刘仕民 

机构地区：[1]吉林工业大学 [2]长春汽车研究所

出　　处：《汽车技术》1994年第3期15-18,共4页Automobile Technology

摘　　要：根据声强测量的基本原理，利用B＆K3360声强测量系统，对CA6102型汽油机表面辐射噪声源进行了识别，并采用参考声源法，测量、研究了该机辐射声功率随转速、负荷的变化关系。依据上述结果，针对该机的实际情况，提出了相应的降噪措施。Based on the funda mental principle of sound intensity measuring, the noise source from surface radiating of model CA6102 gasoline engine is distinguished by utilizing B & K 3360 measuring system. The relation of the radiating sound power with the change of speed and load of that engine is studied by using reference sound source method. There after countermeasure of noise suppression is brought forward according to the reswlt obtained and the pratical situation of the engine

关 键 词：汽油机 噪声源 诊断 汽车 

分 类 号：U674.493[交通运输工程—船舶及航道工程]