Investigation on the mechanism of damping behavior of magnetorheological elastomers
Investigation on the mechanism of damping behavior of magnetorheological elastomers
复制标题
磁流变弹性体阻尼行为机理研究
DOI：
10.1088/0964-1726/21/12/125015
复制
发表时间：
2012-12-01
影响因子：
4.1
通讯作者：
Xuan, Shouhu
中科院分区：
文献类型：
--
作者：
Yang, Jie;Gong, Xinglong;Xuan, Shouhu
磁流变弹性体（MREs）是一类智能材料，在动态减振器、发动机支架等领域有着广泛的应用。阻尼特性对磁流变器的应用具有重要意义。然而，对mre阻尼机理的研究还不够深入。在本研究中，MREs被建模为具有磁致特性的特殊颗粒增强复合材料，并从理论和实验上研究了MREs的阻尼行为机理。研究发现磁流变磁振器的阻尼特性有三种类型：本征阻尼、界面阻尼和磁力阻尼。通过一系列MRE样品的阻尼试验，验证了所提出的阻尼模型的有效性。进一步讨论了阻尼特性与mre公式之间的关系；这为制造具有不同阻尼特性的磁流变器提供了指导。
Magnetorheological elastomers (MREs) are a group of smart materials which have many applications such as dynamic vibration absorbers, engine mounts, and so on. The damping behavior is important for applications of MREs. However, the mechanism of the damping of MREs has not been investigated thoroughly. In this study, MREs are modeled as special particle reinforced composites with magneto-induced properties and the mechanism of the damping behavior of MREs is investigated theoretically and experimentally. It has been found that there are three types of damping property in MREs: the intrinsic damping, the interface damping and the magneto-mechanical damping. The presented damping model is successfully validated by damping tests on a series of MRE samples. Furthermore, the relationships between the damping properties and formulas of MREs are discussed; this provides guidance for the manufacture of MREs with various damping properties.