Simulation Study on the Motion of Magnetic Particles in Silicone Rubber-Based Magnetorheological Elastomers
Simulation Study on the Motion of Magnetic Particles in Silicone Rubber-Based Magnetorheological Elastomers
复制标题
硅橡胶基磁流变弹性体中磁性粒子运动的模拟研究
DOI：
10.1155/2019/8182651
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发表时间：
2019-07
影响因子：
--
通讯作者：
Jun Wang
中科院分区：
文献类型：
--
作者：
Zhiqiang Xu;Heng Wu;Qiuliang Wang;LiyinYi;Jun Wang
磁流变弹性体（MRE）是一种智能复合材料，已广泛应用于减振、传感等各个领域。 MRE通过其内部磁性颗粒的链接而具有优异的磁流变效应。目前MRE的研究主要集中在材料的制备和力学性能表征方面。然而，对于MRE固化过程中磁粉运动机制的研究却很少。基于硅橡胶基MRE，通过数值模拟探讨了磁性颗粒在固化过程中的运动机理。首先，我们分析了MRE中磁性颗粒的磁力和粘性力，并讨论了磁性颗粒在外加磁场下的运动方程。进一步，我们通过有限元方法建立了均匀磁场模型，模拟了磁场下两个磁性粒子的运动。最后，我们讨论了颗粒分布角、颗粒半径、施加的磁场强度以及颗粒之间的距离对颗粒速度和位移的影响。结果表明，颗粒间的距离对磁性颗粒的运动影响最大，颗粒间距离的大小会影响颗粒的接触时间，从而影响MRE中磁性颗粒的链形成。
Magnetorheological elastomer (MRE) is an intelligent composite material and has been widely used in various fields such as vibration reduction and sensing. MRE has an excellent magnetorheological effect through the chaining of its internal magnetic particles. Current studies on MREs mainly focus on the preparation of materials and characterization of mechanical properties. However, very few studies have been conducted on the mechanism of magnetic particle motion during MRE curing. Based on the silicone rubber-based MRE, the motion mechanism of magnetic particles during curing was explored through numerical simulation. First, we analyzed the magnetic force and viscous force of magnetic particles in MRE and discussed the equations of motion of magnetic particles under applied magnetic field. Further, we established a uniform magnetic field model through the finite element method and simulated the motion of two magnetic particles under the magnetic field. Finally, we discussed the effects of particle distribution angles, particle radii, applied magnetic field strength, and distance between particles on particle velocity and displacement. The results show that the distance between particles has the greatest influence on the motion of magnetic particles, and the size of the distance between particles will affect the contact time of the particles, thus affecting the chain formation of magnetic particles in the MRE.
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影响因子：
4.8
作者：
A. Sand;Jan F. Stener;M. Toivakka;J. Carlson;Bertil I. Pålsson
通讯作者：
A. Sand;Jan F. Stener;M. Toivakka;J. Carlson;Bertil I. Pålsson
影响因子：
8.4
作者：
Bastola, Anil K.;Li, Lin
通讯作者：
Li, Lin
DOI：
10.1007/s40997-017-0081-5
发表时间：
2018-06-01
影响因子：
1.3
作者：
Alias, Nor F.;Muthalif, Asan G. A.;Nordin, N. H. Diyana
通讯作者：
Nordin, N. H. Diyana
DOI：
10.1016/j.jiec.2010.12.001
发表时间：
2011-01-25
影响因子：
6.1
作者：
Bica, Ioan
通讯作者：
Bica, Ioan
影响因子：
5.2
作者：
Rikio Soda;Kohei Tanaka;Takagi Kenta;K. Ozaki
通讯作者：
Rikio Soda;Kohei Tanaka;Takagi Kenta;K. Ozaki