摘要
声边界元法,是识别和预测噪声的一种新方法。介绍了声边界元法的理论及计算步骤,并应用声边界元法计算了汽车驾驶室内空气振动的共振频率和频率响应特性、发动机进气系统的声频率响应函数、发动机表面辐射噪声的方向性及辐射效率。
The sound boundary element method is one of the new methods for identification and estimation of the noise. The theory and calculation sequence of this method are presented in this paper, then by using the method the resonance frequency and frequency response characteristics of vibration of the air inner motor vehicle cabs, as well as, the response function of sound frequency in engine intake system, the directionality and efficiency of the radiation noise from engine surfaces are calculated.
出处
《汽车技术》
北大核心
1992年第5期18-22,共5页
Automobile Technology
