ASAC系统最终的目的是控制辐射声功率。
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.
利用这些图就可方便地得到吸气管道内风机辐射声功率级和声压级的关系。
Finally figures of direction coefficient of sound pressure level are given out. Then using these figures the relationship between sound power level and sound pressure level radiated by a fan in...
推导了表面振速分布不均匀的辐射器的辐射阻抗与辐射器辐射声功率之间的关系。
The relationship between the radiation impedance and the acoustic radiated power of the radiator with non-uniform vibrating velocity on the surface is formulated.
计算了圆柱壳表面的辐射声功率和辐射声压,讨论了阻尼覆盖层面积对声辐射的影响。
The radiated power and acoustic pressure on the shell sur face are calculated, and the influence of the layer area on the shell "s radiation is discussed."
以水中有限长圆柱壳体为理论模型,用辐射声功率和辐射效率作为表征量导出了相似律。
Similarity rules were derived for a finite cylindrical shell, characterized by radiated sound power and radiation efficiency.
随着流速的增加,结构的法向均方速度和辐射声功率均增大,但流速对结构辐射声功率的影响远大于对结构速度均方值的影响;
The effects of flow speed increase the mean square velocity and radiated power, the effect on radiated power is more obvious than on velocity.
对于影响围壳模型辐射声功率的主要因素,比如围壳模型厚度、不同的加肋情况和激励力分布等,进行研究分析其对围壳辐射声功率的影响。
The effect of main factors, such as the thickness of the model, the distribution of symmetric forces excited on the model, and different kind of ribs, on the radiated sound power has been analyzed.
通过用声强测量系统对水下大型结构体进行了辐射噪声声功率的测定以及噪声源的识别和定位的实验。
The measurement of radiation noises from an underwater structure body and identification and location of noise sources were carried out by using a sound intensity measurement system .
介绍了一种测量辐射压力法的超声功率计设计原理,在超声功率计设计中融入智能控制的设计思想。
The designing principle of ultrasound power meter based on radiation pressure method is explained. In designing, intelligent controlling method is used.
设计了一个超声频率、超声功率和辐射时间三因素四水平的正交实验,研究超声辐射对海水小球藻的生物效应。
In this study, a three factor and four level orthogonal experiment was designed to study the biologic effect of ultrasonic radiation on Marine Chlorella.
辐射压力法测量声功率是一种常用的超声功率测量方法。
Radiation pressure method is often used in ultrasound power measurement.
微波辐射计的定标噪声源提供定量噪声功率,是微波辐射计定标中不可缺少的重要部分。
The calibration noise sources of microwave radiometer. gives a quantitative noise power. They are an important and necessary part in calibration of microwave radiometer.
星载微波辐射计的天线提供的是宽带噪声功率信号。
The signal given by the antenna of spaceborne microwave radiometer is a wide band noise power signal.
对该柴油机的主要辐射噪声源及其对整机噪声声功率的贡献度以及整机的辐射噪声进行了预测,预测结果与实测结果基本吻合。
The prediction of this diesel engine main noise sources and their contribution to engine sound power is carried out accords with experiment result.
对该柴油机的主要辐射噪声源及其对整机噪声声功率的贡献度以及整机的辐射噪声进行了预测,预测结果与实测结果基本吻合。
The prediction of this diesel engine main noise sources and their contribution to engine sound power is carried out accords with experiment result.
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