The acoustic radiation modes express the radiation patterns of a vibrating surface.
声辐射模态表示了振动声源表面的辐射模式。
The physical characteristics and mathematical meaning of the radiation modes is analyzed.
并分析了声辐射模态的数学和物理意义。
The adjoint coefficient of sound radiation modes is proportional to the corresponding sound radiation power.
声辐射模态伴随系数与对应的辐射声功率成正比。
It is important in ASAC based on acoustic radiation modes to obtain adjoint coefficients of the radiation modes.
声辐射模态伴随系数的获取是基于声辐射模态理论进行ASAC控制中的重要环节。
The radiation efficiency of the radiation modes falls off very rapidly with increasing modes order at low frequency.
研究发现在中、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.
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。
With an example of simply supported beam, it is presented to active control structure-borne sound by mean of radiation modes.
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。
The theory of acoustic radiation modes is a effective method to analyze the behavior of sound field caused by the vibrating body.
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。
We present in this paper an exact method of determining the orthonormal radiation modes of multilayer planar dielectric waveguides.
用微波网络方法分析了多种介质波导的色散特性，给出了这些波导的有效介电常数。
Based on the radiation modes, it is presented a piezoelectric sensor strategy with an example of simply supported rectangular panel.
以简支板为例，利用压电式传感器测量声辐射模态。
The radiation behavior of the vibrating surface can be expressed by expansions of the radiation modes and the field distribution modes.
声辐射行为可用辐射模态和声场分布模态展开表示。
The location of optimization of piezoelectric actuator based on the theory of radiation modes in the active control decoupling is studied.
研究基于声辐射模态理论进行有源控制解耦中压电作动器的位置优化问题。
Then the mode series of step index planar dielectric waveguide and circular optical fiber are studied, including propagation modes and radiation modes.
接着推导了阶跃折射率平面介质波导和圆光纤的正交模式——包括束缚模式和辐射模式。
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.
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。
Previous researches have proposed that as long as four groups of actuators are arranged symmetrically, active control decoupling based on radiation modes can be achieved.
以往的研究得出：只要四组作动器满足某种对称形式布置，就可以实现声辐射模态的有源控制解耦，但是满足对称性布置的四组作动器位置有无数个。
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.
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。
The acoustic radiation modes and the field distribution modes describe the radiation patterns of a complex vibrating surface and the field distribution patterns respectively.
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。
A theoretical method to solve acoustical radiation modes and acoustical radiation efficiency of complex structure by a boundary element method and acoustical radiation theory is posed in this paper.
提出一种用边界元方法与声辐射理论求解复杂结构的声辐射模态与声辐射效率的理论方法。
In the active structural acoustic control based on radiation modes, the cancellation of the dominant radiation modes and determination of the arrangement of secondary forces are of virtual important.
在基于声辐射模态理论的结构声有源控制中，主导辐射模态的确定及抵消策略是至关重要的，它直接决定次级力源的优化布放及有源控制的效果。
Computation results show that the low order modes take main effect in sound radiation.
数值计算结果表明低阶模态对壳体声辐射起着主要作用。
By considering the influence of radiation effect and higher order modes, the measurement frequency range has successfully extended to X-band.
由于考虑了辐射效应和高次模的影响，测量频率范围成功地扩展到了X波段。
The poles introduced by the transfer function of the structure produce the radiation field components with the resonance modes of a liquid loaded plate.
另一些由于结构传递函数引起的极点产生带有流体负荷的板的共振辐射场。
Thermally induced vibration of space structures, which are subjected to incident solar heat flux and emitting thermal energy by radiation, is one of typical modes of structural failure.
空间结构在辐射换热条件下的热诱发振动是导致空间结构失效的一种典型模式。
Microporous insulation products actually have thermal conductivity values lower than still air, due to their ability to block the three modes of heat transfer (conduction, convection and radiation).
微孔绝缘材料的热导值低于静态气流，这是由于该产品能阻碍热传递的三种方式的实现(热传导、对流和辐射)。
Contribution of structural modes to the radiation noise is analyzed.
并分析结构模态对辐射噪声的贡献量。
Influences of various types of damages on natural frequencies, vibration modes, acoustic radiation power and directivity of sound are studied.
考虑到不同损伤存在形式，计算分析了损伤对振动频率、模态以及声辐射特性的影响。
Objective To compare the acute radiation reactions and sequelae with different radiation fields and different modes of fractionated radiotherapy for nasopharyngeal carcinoma.
目的比较不同照射野或不同剂量分割放疗鼻咽癌的急性放射反应及后遗症。
Based on the transmitted field the characteristic of interference and sensing between two modes is investigated and point out the disciplinarian of far field two-lobe radiation patterns.
建立在光纤中传输模场的基础上，研究了两模间干涉特性和传感特性，指出了远场两瓣光斑的动态变化规律。
Sound radiation analysis of low order modes from the ring-stiffened cylindrical shells in fluid medium;
对流场中一无限长周期环肋圆柱壳受激振动的辐射声压进行了理论和实验研究。
Sound radiation analysis of low order modes from the ring-stiffened cylindrical shells in fluid medium;
对流场中一无限长周期环肋圆柱壳受激振动的辐射声压进行了理论和实验研究。
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