DDS-70 electromagnet kinetic equipment was used to study the dynamic strength, stress-strain relationship, dynamic modulus and damping ratio of three tailing sand types.
使用DDS - 70微机控制电磁式振动三轴仪，对三种尾矿砂试样进行了动强度、动本构关系、动弹模阻尼比三方面动力特性研究。
The dynamic shear modulus ratio and damping ratio of soil are indispensability for seismic safety evaluation and soil layer seismic response analysis of engineering sites.
土的动剪切模量比和阻尼比是工程场地地震安全性评价工作和土层地震反应分析中不可缺少的重要参数。
Dynamic mechanical thermal analysis showed that the addition of TPR improved the damping of the composite, but decreased the storage modulus and the glass transition temperature of the composite.
复合材料动态力学性能研究表明：TPR的加入提高了复合材料的阻尼性质，却降低了复合材料的存储模量和玻璃化转变温度；
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