1) distribution sound source
分布声源
2) distribution of noise sources
噪声源分布
3) distributed sound sources
分布式声源
1.
According the characteristics of distributed sound sources of ship sound field in near range, the source model is studied by measuring three-axis acoustic intensity, and the method to improve its accuracy is presented.
根据舰船声场的近程分布式声源特性,采用三轴声强测量法建立了模型,提出了提高其精度的方法。
4) Isodose distribution
布源分布
5) acoustic pressure distribution
声压分布
1.
The acoustic pressure distribution of the reactive muffler and the variation of transfer loss with frequency are obtained from a series of procedure, such as loading, solving and postprocessing.
ANSYS是一大型的通用有限元分析软件,其应用范围极为广泛 运用ANSYS软件对消声器声场进行了有限元分析,先建立抗性消声器的有限元模型,在此基础上通过加载、求解以及后处理等一系列的步骤对消声器进行计算分析,获得消声器内部的声压分布情况和传递损失随频率的变化关系,为消声器的优化设计提供依
6) sound field distribution
声场分布
1.
The calculating model of sound field distribution along the urban elevated railway.;
城市高架轨道交通沿线声场分布计算模型
2.
According to the theory of wave acoustics and ray acoustics,train is regarded as a moving limited line sound source and the mathematics model of sound field distribution is set up around the elevated railway.
根据波动声学和几何声学原理,将列车看作一运动着的有限长线声源,建立了有声屏障时城市高架轨道交通沿线声场分布计算模型。
3.
Through monitoring with sound arrester and without sound arrester, analyses the sound field distribution on the side of high way, discover the sound field distribution character for the purpose of advising the scientific methods of sound degrading design and checking.
通过对高速公路侧向有、无声屏障状态下的声场分布测试与分析 ,旨在揭示高速公路声屏障降噪声场的分布特性 ,为道路声屏障的声学设计及验收方法提供科学依
补充资料：点声源
点声源
Point source
点声源(point Source) 在空间上仅有明确位置而无范围的声源称为点声源。讨论声辐射时，定义点声源的概念是方便的。假如点声源的声辐射在径向的传播是直线(在球面波中，情况也相同)，那么根据能量守恒原理，辐射强度在任何方向的衰减和声源距离的平方成反比。实际上的物理声源并非数学上的点，但若距离极大于声源尺寸时，平方反比律可以是一个很好地近似。参阅“平方反比律”(inverse一square law)条。 〔小赫尔(Me A.Hull，Jr.)撰口
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条