School of Electrical Engineering Xi'an Jiaotong University;
Department of Electrical Engi-neering;
Henan Polytechnic University;
Jiaozuo 454000;
China;
Department of Electrical Engi-neering;
Henan Polytechnic University;
开坯压力; 有限元分析; PMLSMs; 数学模型; 同步电动机;