研究了用于声场分析的直接边界元法。
The direct boundary element method used in sound field analysis is studied.
应用数值分析方法对某汽车排气消声器进行了流场、温度场和声场分析。
The acoustic field, flow field and temperature field inside a muffler are studied by the numerical analyze method.
随着对水下声场的进一步深入，出现了以声场分析为基础的匹配场被动定位技术。
As the further research on the underwater acoustic field, the matched field passive source location is proposed.
研究结果表明，三维声学边界元模型是抗性结构消声器声场分析的有效方法并具有较高精度。
The research shows that the three-dimensional acoustic boundary clement model is an efficient and highly accurate method of sound field analysis of reactive mufflers.
本文利用声场分析技术和谱分析技术对轻型客车的车内噪声进行了测试分析，识别出车内噪声的主要噪声源。
By means of the techniques of noise field analysis and spectrum analysis, the noise inside a light bus was measured and analyzed, and the main noise source was identified.
文章根据波动声学的观点对房间内的低频段声场做分析，理论和实验都验证了这个结论。
Based on wave acoustics, the low frequency sound field is analyzed in this paper, and reciprocity is verified both theoretically and experimentally.
从声场要求出发，对音箱的放置位置进行了分析并给出了计算结果。
Proceeding from the sound field requirement the sound box location was analyzed and the results were put forward as well.
理论上采用射线近似方法分析了时间反转声场特性，实验上在实验室内开展了水下波导的超声模拟实验。
The ray approach is adopted to study the acoustic field in theory, and the ultrasonic experiment has been carried out in laboratory to model the underwater waveguide.
在假设半无限长管道的前提下，详细分析了噪声有源控制系统作用下的管道声场特性。
The acoustic character controlled by the active noise attenuation system in ducts has been analyzed in detail on premise of semi-infinite ducts.
本文提出的方法可应用于计算声场景分析中。
Above mentioned method could be applied to computational auditory scene analysis.
通过分析聚焦声场的特性，得到了聚焦区附近的瞬时声压表达式。
The expression for instantaneous pressure near the focusing area was obtained by analyzing the characteristic of focusing acoustic field.
我们对它的声场和频谱作了详细的实验测量，由于采用外差分析技术，冲击噪声的离散谱和宽带谱可同时记录。
Sound field and spectra thereof were investigated experimentally by utilizing the heterodyne analysis technique, so that both the screech and the wide-band noise can be recorded and studied.
根据不同的噪声场分布情况，就如何提高抗噪声送话器的抗噪能力进行了理论分析。
According to the different distributions of noise fields how to increase the noise-cancelling ability is analyzed theoretically.
声场景分析主要研究如何在嘈杂的声音中感知环境事件。
Auditory scene analysis is the study on how to recognize environmental events with sounds arising from various acoustic sources.
在模拟的声压分布的基础上，分析了驻波声场调制气泡的机理。
Based on the distribution of sound pressure, the mechanism for bubble modulation is analyzed.
利用简正波干涉理论，对实验结果中声场水平纵向相关的振荡结构与强烈起伏现象进行了分析与解释。
The oscillation pattern and strong fluctuations of the horizontal-longitudinal correlations observed in the experiments are analyzed and interpreted by using the normal modes interference theory.
分析了车内声场在发动机悬置和悬架激励力下的响应特性。
The sound pressure response character excitated by force of engine mount and spring system is analyzed.
利用波数积分方法仿真计算了该模型在自由场条件下的近程声场，并分析了近场辐射噪声的基本规律。
The sound pressure at near distance under free field was computed by using the wave number integration and the basic characteristics of the radiated noise were analyzes.
本文对回热器的长度、水力半径或板叠间隙、回热器在驻波声场中的位置等回热器特性参数对其性能的影响进行了模拟分析，并在此基础上对回热器或板叠特性参数进行了优化。
In this paper we describe simulation analysis and optimization on the characteristic parameters of regenerator, such as the length, the spacing of plates, the position in sound field of regenerator.
根据理论分析，提出了工件中声场特性测试的近似方法，绘制了特定探头钢中声场状态。
According to the theoretical analysis, the testing method of approximate sound field characteristic in steel was proposed, and it was applied to the designing of special probe.
文章建立了飞机壁板隔声的统计能量分析模型，研究了外部声场激励和振动激励通过飞机壁板的隔声量，预测了飞机舱室内的声场分布。
In this paper, a model of statistical energy analysis is used to study sound transmission loss of the aircraft cabin, and predict the sound field in the cabin.
主要工作和结论为：（1）分析声场频率、声压和气泡初始半径对气泡动力学过程的影响。
The following work has been done:(1) Analyzing the influence of acoustic frequency, acoustic pressure amplitude and initial bubble radius towards bubble dynamics respectively;
通过对平面驻波声场的理论分析，设计并建立了燃煤可吸入颗粒物声波团聚清除特性的实验台。
Through a theoretical analysis of a plane standing-wave sonic field a test rig on acoustic agglomeration and removal characteristics of burned coal inhalable particles has been designed and set up.
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.
分析结果表明固定四角薄型平板的振动是不规则的，在远声场振动辐射是无指向性的。
The results indicate that the vibration of thin flat plane loudspeaker with four corners fixed is anomalistic and the vibration radiation at far sound field doesn't have any directionality.
声全息方法是分析噪声场的一种有效手段。
Acoustic holography is an effective method to analysis noise fields.
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.
并分析了温度、透镜曲率半径和油层厚度对探头声场的影响。
The influence of temperature, curvature radius of lens and the thickness of oil on ultrasonic field is analyzed.
并分析了温度、透镜曲率半径和油层厚度对探头声场的影响。
The influence of temperature, curvature radius of lens and the thickness of oil on ultrasonic field is analyzed.
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