噪声与振动控制2017，Vol.37Issue(3)：58-61,95,5.DOI:10.3969/j.issn.1006-1355.2017.03.011
某型爪极发电机的模态仿真与试验分析
Modal Simulation and Test Analysis of a Claw-pole Alternator
摘要
Abstract
Precise calculation of natural frequencies and mode shapes is the foundation of vibration and noise reduction for claw-pole alternators. Noise test of a claw-pole alternator shows that it has the problem of overlarge electromagnetic noise due to the structure resonance. In this article, the model of the stator core and the equivalent volume model of the coil including the end winding are built. Meanwhile, the whole alternator model is established. Material parameters are also processed equivalently. The free vibration modals of the components and the whole alternator are simulated by means of finite element software. It is found that the test results and the simulation results are in good agreement and their maximum error is only 7.1 %. Finally, the modal test and simulation in constraint state are completed and the effectiveness of the modeling and the modal analysis method is verified.关键词
振动与波/爪极发电机/建模/模态仿真/模态试验/电磁噪声Key words
vibration and wave/claw-pole alternator/modeling/modal analysis/modal test/electromagnetic noise分类
信息技术与安全科学引用本文复制引用
张浩,贺岩松,徐中明,张志飞..某型爪极发电机的模态仿真与试验分析[J].噪声与振动控制,2017,37(3):58-61,95,5.基金项目
汽车噪声振动和安全技术国家重点实验室资助项目(Q145615) （Q145615）
