Microscopic observation of behavior of magnetic particle clusters during torque transfer between magnetic poles
Microscopic observation of behavior of magnetic particle clusters during torque transfer between magnetic poles
复制标题
DOI：
10.1063/1.4916113
复制
发表时间：
2015-03
影响因子：
3.2
通讯作者：
K. Nagato;T. Oshima;A. Kuwayama;H. Okada;T. Matsushima;S. Takagi;M. Nakao;T. Hamaguchi
中科院分区：
文献类型：
--
作者：
K. Nagato;T. Oshima;A. Kuwayama;H. Okada;T. Matsushima;S. Takagi;M. Nakao;T. Hamaguchi
研究了磁性颗粒在团簇形成、破裂和滑动过程中的行为。设计并搭建了一套可同时实现粒子可视化和极间转矩测量的实验装置。在平极的情况下，集群倾斜的断裂和滑动模式区。在纹理磁极的情况下，扭矩增加，并随着与纹理的节距相对应的周期而变化。这些集群倾斜的角度小于在平面极点的情况下。有限元法计算的磁场分布支持这一结果，其中磁场集中在凹部及其边缘。这些结果将导致更有效的扭矩传递装置的设计使用磁流变液。
The behavior of magnetic particles during the formation, fracture, and sliding of clusters was investigated. A setup, in which particles can be visualized and the torque between poles is measured simultaneously, was designed and built. In the case of flat poles, clusters were inclined in both the fracture and sliding mode areas. In the case of textured poles, the torque increased and varied with the cycle corresponding to the pitch of the texture. These clusters inclined by an angle less than that in the case of flat poles. The magnetic field distribution calculated by a finite element method supported this result, in which the field was concentrated at the concaves and their edges. These results will lead to the design of more efficient torque transfer devices using magnetorheological fluids.