有限元法计算磁流体在极靴齿隙中的磁场强度分布

Finite-element Method for Calculating the Distribution of Magnetic Field Strength in Pole Piece Tooth Space

磁流体往复轴动密封装置的磁场分布决定着磁流体的密封能力。本文用有限元方法 对这一边界形状较为复杂的磁场区域进行了计算。在计算中将磁流体的磁饱和效应考虑 在内，能够直观精确地求出场域中任一点上的磁场强度值。

The distribution of magnetic field strength in magnetofluid dynamically reciprocal sealing equipment sharply takes part in magnetofluid sealing behaviour. We use the finite-element method for calculating the magnetic field strength in pole piece tooth space, where its shape is complicated and changeable in the paper.Magnetic-saturation is considered during calculation.With this method, the magnetic field strength at any point in the pole space can be calculated out directly and correctly.