这些现象与声流及声辐射压力有关。
Some interesting phenomena are observed which related to acoustic streaming and acoustic radiation pressure.
讨论了边界元方法在声辐射问题中的应用。
This paper deals with the application of the boundary element method for sound radiation problems.
声辐射模态表示了振动声源表面的辐射模式。
The acoustic radiation modes express the radiation patterns of a vibrating surface.
一种模态分析的方法引进声辐射问题的研究之中。
The model analysis approach is introduced into the acoustic radiation problems.
声辐射模态伴随系数与对应的辐射声功率成正比。
The adjoint coefficient of sound radiation modes is proportional to the corresponding sound radiation power.
本文研究了夹层复合加筋板结构的振动声辐射特性。
The sound radiation of viscoelastic composite sandwich plates is researched in this paper.
然后将该理论应用于柴油机机体的声辐射特性分析。
Then, the presented theory is used to analyse the acoustic radiation properties of the diesel engine block.
声辐射行为可用辐射模态和声场分布模态展开表示。
The radiation behavior of the vibrating surface can be expressed by expansions of the radiation modes and the field distribution modes.
实验结果表明这种声辐射模态传感器的设计是可行的。
The experimental results show that this new type of radiation mode sensor is available.
数值计算结果表明低阶模态对壳体声辐射起着主要作用。
Computation results show that the low order modes take main effect in sound radiation.
本文对潜艇结构振动声辐射特性的研究具有重要的意义。
The research work in this paper is valuable for investigation of the vibration and acoustic radiation of the submarine.
针对复杂振动表面的声辐射问题，提出一种模态分析方法。
For the acoustic radiation problems from a complex vibrating body surface, a model analysis approach is put forward.
以简支矩形板为例，通过声辐射模态研究结构声辐射问题。
With an example of simply supported rectangular panel, this paper presents a new method for analysis of structure borne sound by radiation mode method.
通过对声辐射理论的研究，获得超声无触点支承的理论依据。
The theory basis of ultrasonic contactless support is achieved by studying the sound radiant theory.
以简支梁为例，通过声辐射模态研究简支梁声辐射的有源控制。
With an example of simply supported beam, it is presented to active control structure-borne sound by mean of radiation modes.
声辐射模态理论是有效的分析结构振动辐射声场性质的一种方法。
The theory of acoustic radiation modes is a effective method to analyze the behavior of sound field caused by the vibrating body.
针对耦合空间中的声能衰变，提出一种改进的声辐射度模拟方法。
An improved model based on acoustical radiosity was proposed to investigate sound decays in a system of two coupled Spaces.
边界元法用于计算轴对称管道及消声器内部声场与管口声辐射问题。
The BEM is applied to calculating the acoustic field in axisymmetric ducts and mufflers as well as the sound radiation from open end.
文章以简支平板为例，通过声辐射模态研究结构声辐射的有源控制。
In this paper, with an example of simply supported rectangular panel, it is presented active of control structure borne sound radiation by means of radiation modes.
利用声辐射阻力矩阵和振动面上的速度矢量预报了结构声辐射的总功率。
The acoustic radiation resistance matrix is combined with the velocity vector on a vibration surface to predict the total sound power radiated from the structure.
基于界面扩散反射的声辐射度模拟方法在单一空间中已得到有效的应用。
The acoustical radiosity method, which assumes diffusely reflecting boundaries, has recently been developed to predict the sound fields in single-volume rooms.
作者认为混合边界法在处理这类动边界声辐射问题上有着很好的应用前景。
It is also shown that the MBEM is expected to have good prospect in the movable boundary problem of noise radiation.
对某水下结构，依据声辐射规律，利用互易方法估计了该结构的振动状况。
The vibration status of a certain structure was researched on the basis of the sound radiation property by using the reciprocity method.
对浮筏系统的振动传递及水下声辐射特性进行试验研究有其重要的工程应用前景。
Vibration transmission and underwater acoustic radiation characteristics experiment of floating raft system has an important technical application prospect.
并且用ANSYS分析了某些特定频率的振动情况以及在远声场的声辐射特性。
The vibration instances at some special frequencies are analyzed and the sound radiation characteristics at far sound field are calculated by ANSYS.
以简支平板为例，通过声辐射模态建立了弹性结构声辐射的有源主动控制策略。
Based on the radiation modes, it is presented an active control strategy for sound radiation from elastic structures with an example of simply supported rectangular panel.
基于声辐射模态分析，建立了外部场压和结构表面振动速度之间关系的传递矩阵。
Based on the acoustic radiation mode analysis, the transfer matrix relating the pressure at every field point to normal component of surface velocity is formed.
以位势理论为基础，提出了求解含任意形状空穴外场声辐射的伸缩虚拟边界元法。
Based on the potential theory, an expanding contracting virtual boundary element method (ECVBEM) is presented to solve the vibration and sound radiation from a cavity with an arbitrary shape.
由于在中、低频时，声辐射模态对应的辐射效率随着模态阶数的增加而迅速降低。
The radiation efficiency of the radiation modes falls off very rapidly with the increase of modes order at low frequency.
声辐射模态和声场分布模态分别描述了复杂振动表面的辐射模式和声场的分布模式。
The acoustic radiation modes and the field distribution modes describe the radiation patterns of a complex vibrating surface and the field distribution patterns respectively.
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