Harmonic weighting functions at the sliding interface of a finite-element machine model incorporating angular displacement
Harmonic weighting functions at the sliding interface of a finite-element machine model incorporating angular displacement
复制标题
包含角位移的有限元机器模型滑动界面处的谐波加权函数
DOI：
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发表时间：
2004
影响因子：
2.1
通讯作者：
T. Weiland
中科院分区：
文献类型：
--
作者：
H. de Gersem;T. Weiland
本文提出的公式利用调和加权函数耦合了二维有限元模型气隙滑动界面处的磁矢势和磁场强度的切向分量，该函数允许使用快速傅立叶变换和简单的对角算子来计算定子和转子之间的角位移。该方法适用于定子和转子啮合不等距且界面处不匹配的模型。该方法大大降低了暂态仿真期间系统组装和预条件设置的成本，并为处理扭斜和扭矩计算提供了方便的方法。
The formulation presented in this paper couples the magnetic vector potential and the tangential component of the magnetic field strength at a sliding interface in the air gap of a two-dimensional finite-element machine model using harmonic weighting functions which enable the use of fast Fourier transforms in combination with a simple, diagonal operator to account for the angular displacement between stator and rotor. The method applies to models where the stator and rotor meshes are nonequidistant and nonmatching at the interface. The approach substantially reduces the cost of system assembly and preconditioner setup during a transient simulation and offers convenient ways for dealing with skewing and for torque computation.