永磁电机中永磁体与有槽电枢铁心之间的相互作用,产生齿槽转矩,引起电机振动和噪声。文章采用全场域三维有限元分析方法,对轴向磁场磁通切换型永磁(Axial Field Flux-switching Perma-nent Magnet,简称AFFSPM)电机的齿槽转矩进行了仿真...永磁电机中永磁体与有槽电枢铁心之间的相互作用,产生齿槽转矩,引起电机振动和噪声。文章采用全场域三维有限元分析方法,对轴向磁场磁通切换型永磁(Axial Field Flux-switching Perma-nent Magnet,简称AFFSPM)电机的齿槽转矩进行了仿真计算,研究了影响AFFSPM电机齿槽转矩的因素,给出了削弱齿槽转矩的有效方法,为电机的最优设计提供了重要的理论依据。展开更多
The transferability of the toughness results in ductile-brittle transition region for welded cracked specimens is conducted by 3D FE analysis. The fracture toughness Values for the double edge notched tension specimen...The transferability of the toughness results in ductile-brittle transition region for welded cracked specimens is conducted by 3D FE analysis. The fracture toughness Values for the double edge notched tension specimens are predicted effectively from the bend test results based on the local approach considering stable crack growth. It is found that the cell model gives a good description of the stable crack growth behavior, and the local approach is useful for the transferability analysis of fracture toughness results in ductile-brittle transition region.展开更多
文摘永磁电机中永磁体与有槽电枢铁心之间的相互作用,产生齿槽转矩,引起电机振动和噪声。文章采用全场域三维有限元分析方法,对轴向磁场磁通切换型永磁(Axial Field Flux-switching Perma-nent Magnet,简称AFFSPM)电机的齿槽转矩进行了仿真计算,研究了影响AFFSPM电机齿槽转矩的因素,给出了削弱齿槽转矩的有效方法,为电机的最优设计提供了重要的理论依据。
文摘The transferability of the toughness results in ductile-brittle transition region for welded cracked specimens is conducted by 3D FE analysis. The fracture toughness Values for the double edge notched tension specimens are predicted effectively from the bend test results based on the local approach considering stable crack growth. It is found that the cell model gives a good description of the stable crack growth behavior, and the local approach is useful for the transferability analysis of fracture toughness results in ductile-brittle transition region.
