摘要
在对７０Ｂ２轴流风机噪声源进行分析的基础上，建立了噪声源的数学模型，进一步解释噪声源产生的机理；并利用经验公式定量估算噪声级，实验证明，这些估算满足工程上的要求。
On the basis of the analysis about noise of the 70B2 axial fan,the noise's mathematics mode is established.It found out the mechanism and characteristics of the noise produced.By using the experimential formula the noise level is calculated.The experiment proves that the estimation can meet the demands of engineering and it has practical value.
出处
《环境保护科学》
CAS
1999年第1期27-29,共3页
Environmental Protection Science
