Experimental Investigation of Static Properties of Magnetorheological Elastomer
Experimental Investigation of Static Properties of Magnetorheological Elastomer
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DOI：
10.1007/s40997-017-0081-5
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发表时间：
2018-06-01
影响因子：
1.3
通讯作者：
Nordin, N. H. Diyana
中科院分区：
文献类型：
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作者：
Alias, Nor F.;Muthalif, Asan G. A.;Nordin, N. H. Diyana
磁流变弹性体(MRE)是一种由天然橡胶或合成橡胶填充微米级磁性颗粒制成的智能材料。它的剪切弹性和剪切弹性可以通过外加磁场来控制。在这项研究中，使用悬置系统模型来获得位移传递系数。在实验分析中，通过改变磁性粒子的比例制备了三种不同的磁流变液样品。用万能试验机分别在压缩和拉伸状态下对磁流变液的准静态性能进行了实验研究。在这两种模式下，对样品施加不同的电流和速度。实验结果表明，磁流变液的阻尼力与外加励磁电流、位移和速度成正比。在大多数情况下，力随着样品中磁性颗粒百分比的增加而增加。当磁粉含量为30%、电流为2 A、速度为4 mm/min时，获得的磁化力最大。研究结果对发动机悬置系统的振动控制具有一定的参考价值。
Magnetorheological elastomer (MRE) is a type of smart material made of natural or synthetic rubber filled with micron-sized magnetic particles. Its shear modulus and elasticity can be controlled by applying an external magnetic field. In this study, a mounting system model is used to obtain displacement transmissibility factor. In the experimental analysis, three different MRE samples are manufactured by varying the percentage of magnetic particles. The experimental investigations are carried out to characterize the quasi-static properties of these MREs by attaching them with universal testing machine in compression and tensile mode. In both modes, different currents and velocities are applied to the samples. From the experimental results, a proportional relationship has been observed among the resisting force from MREs and applied excitation current, displacement and velocity. In most cases, the force has increased with the increasing percentage of magnetic particles in the sample. However, the highest force is obtained from the sample with 30% magnetic particles, at 2 A current and velocity of 4 mm/min. The results observed in this research would be useful for vibration control in applications such as engine mounting system.