Based on the principle of sonic resonance, resonant frequency and damping capacity are used as two parameters to test the volume online quickly.

依据音频共振原理，利用共振频率和内耗两个音频参数的共同作用，快速在线检测弹体药室容积，并用此法与传统的「水称重」法进行理论和实验对比分析。

The temperature spectra and frequency spectra of the damping capacity in the IM and RS/PM Al-Li alloys with the same composition were measured by the resonance method with the plate specimens.

采用板片状试样的共振法，测定了同一成分的铸锭合金（IM）和快速凝固粉末冶金（RS／PM）铝锂合金的阻尼温度谱和频率谱。

The damping capacity at room temperature is highly sensitive to strain-amplitude and frequency, as well as the static load.

合金的室温阻尼性能强烈地依赖于频率、应变振幅以及静载荷的大小。

The results show that the damping capacity of the deposite is 2. 8 times more than that of the conventional casting ZA27 alloy.

实验结果表明，与常规铸造条件相比，喷雾沉积和合金化使材料的阻尼性能提高2．8倍；

And it was also found the annealing treatment and the heat recycling treatment could improve the damping capacity of magnesium matrix composite.

镁基复合材料的阻尼性能与其状态关系密切，退火处理和热循环处理提高了复合材料的阻尼性能。

A new propeller alloy with high strength, high damping capacity and excellent corrosion resistance has been put to damping effect test.

本文介绍了一种新型的高强度、高阻尼、耐腐蚀性优良的螺旋桨专用合金在降噪效果方面的试验研究成果。

The damping properties have obvious increase for MgZnZr magnesium alloys in three different heat treatment technology, and the damping capacity of alloys treated by solution are increased more.

热处理后，合金的阻尼性能均得到不同程度的提高，其中，固溶态合金的阻尼性能最好。

Next, after heat treatment, the mechanical properties and damping capacity of above deformed alloy was investigated.

接下来，研究了上述变形态镁合金经热处理后的力学性能和阻尼性能。

The damping capacity in cast condition is dependent on strain amplitude, and it increases with its enhancement.

铸态合金的阻尼性能与应变振幅有关，随着应变振幅的提高而不断提高；

Mechanical properties, fluid permeability, acoustical properties, heat conductivity and damping capacity were tested by testing methods and testing units that we design.

通过理论分析和典型试验，证明了温度对液体在橡胶中透过性测量的显着影响和保持试验环境温度恒定的必要性。

Preparing damping composites with good strength and stiffness as well as well damping capacity by combined different materials now became the new trend of development of damping materials.

通过材料的复合化，制备强度、刚度和阻尼性能俱佳的结构阻尼复合材料成为阻尼材料的发展方向。

The experiment results show that the damping capacity of deformed Martensite first decreases sharply and then keep constant with the increase of frequency at the low strain amplitude;

结果表明，当应变振幅较低时，形变马氏体的阻尼值随频率的增加先急剧下降至一定值后趋于稳定；

The effect of pore structure (pore diameter, porosity) on the damping capacity of compound has also been studied, and the results are discussed.

同时研究了泡沫金属孔隙结构对复合体内耗值的影响关系，并对实验结果进行了讨论。