NdFeB Magnet Composite Design Based on BP Network

Traditionally, the composite design of NdFeB magnet was consuming with repeated experiments. In order to speed up the design process of NdFeB magnet, BP network is trained to model the relationship between NdFeB magnet composition and the magnetic properties. The training data that come from production data are classified into two groups for the purpose of simplifying the network structure and improving the efficiency of the training. The experiment results of regression analysis indicate that the predicted data are consistent with the measured data quite well. The tendencies of the magnetic properties are also forecasted in the experiment results, which will guide the NdFeB magnet composite designing.