The mechanical damping properties of metallic foams has been studied in the paper. It is found that metallic foams is a light high-damping material with great energy absorbing characteristics.
研究了泡沫金属的机械阻尼性能，表明泡沫金属是一种具有高能量吸收特性的轻质高阻尼材料，其阻尼特征表现为与应变振幅密切相关，而与应变频率无显著关系的非线性内耗。
Therefore, by determining the intensity of ultrasonic damping, the mechanical properties of composite can be predicted directly.
结果表明，可以通过超声衰减的？度直接预测复合材料的力学性能。
How to control the vibration isolation devices in three main directions of stiffness, damping, and other mechanical properties parameters is the key of the study.
如何控制隔震装置在三个主轴方向的刚度、阻尼等力学性能参数是研究的关键。
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