摘要：首先建立了车用爪极发电机的场路耦合三维有限元模型，基于该模型使用Ansoft仿真软件分析其电磁场及径向电磁力波，得出力波峰值时的频率值；使用
Ansys Workbench软件对定子铁心和带绕组的定子进行模态分析，得出其各阶固有频率，结果表明绕组对定子的固有特性影响较大。通过分析电磁力波仿真结果与模态分析结果，得出对发电机振动影响较大的频率点。这些工作对于在发电机设计阶段避免产生共振提供参考，并对分析电磁噪声奠定基础。

关键词：爪极发电机；径向电磁力；模态分析；振动特性；有限元仿真
Abstract: First, a fieldcircuit coupled threedimensional finite element model of vehicle clawpole generator was established, then using the simulation software Ansoft to analyze the electromagnetic field and radial electromagnetic force waves, wave peak draw force frequency value by means of this model; using Ansys Workbench software to analysis the modal of stator core and a stator with windings, the natural frequencies of its results show that windings has a greater impact on the inherent characteristics of the stator By analyzing the simulation results of electromagnetic force wave and modal analysis, people can get the frequencies which had a greater influence on the generator vibration These works provide a reference to avoid resonance in the generator design stage, and lay the foundation for the analysis of electromagnetic noise

Key words: clawpole generator； radial electromagnetic force；modal analysis；vibration characteristics；finite element simulation