Deformable Permanent Ferroelectric or Ferromagnetic Media

In the framework of continuum mechanics, one of possible consistent definitions of deformable permanent magnets is introduced and explored. Similar model can be used for ferroelectric substances. Based on the suggested definition, we establish the key kinematic relationship for the deformable permanent magnet and suggest the simplest master system, allowing to analyze behavior of such substances.

应用于磁场计算的高阶叠层有限元

本文给出了四阶叠层三角元的叠层系数与插值函数节点值之间的线性变换公式，然后用四阶叠层三角元导出了泊松方程边值问题的离散格式，并给出了单元顶点或及重心的场量计算公式。最后通过具有解析解的二维恒定磁场问题的计算实例，比较了一至四阶叠层元的计算精度、内存及ＣＰＵ时间。