论文部分内容阅读
为三维电涡流缓速器的仿真提供了一个完全的有限元表达式,这个表达式通过运用A,Φ-A公式结合库仑定律得以实现.为了考虑电涡流缓速器不规则的几何形状,采用了四面体单元对网格进行划分,并用有限元程序仿真电涡流缓速器在500rpm的磁通密度分布。电涡流缓速器在不同转速下用有限元程序计算的制动力矩与测量值进行了比较,测量值和仿真数据近似一致,有限元程序可用于工程计算和仿真。
A completely finite element expression is provided for the simulation of a three-dimensional eddy current retarder. This expression is achieved by using the formulas A and Φ-A in combination with Coulomb’s law.In order to consider the irregular geometric shape of the eddy current retarder, The tetrahedron cell is divided into grids and the magnetic flux density distribution of the eddy current retarder at 500rpm is simulated by the finite element program. The comparison between the braking torque and the measured value of the eddy current retarder calculated by the finite element program under different speeds is consistent with that of the simulation data. The finite element program can be used for engineering calculation and simulation.