摘要
准确计算电机定子的模态振型和固有频率是降低电机噪声和振动的基础,目前,学者对于定子铁芯和绕组材料属性参数设置存在争议。对一台2.2 kW永磁无刷直流电机定子系统进行模态仿真分析和试验测试。首先,赋予定子铁芯和绕组各项异性材料,通过有限元软件分析电机模态频率与各项异性材料参数之间的关系,根据模态频率变化规律,提出一种基于模态频率的各项异性材料参数矫正方法,该方法可完成定子的有限元模型参数矫正。其次,采用锤击法进行模态试验,验证有限元模型的准确性,确定该等效材料参数矫正方法的有效性,并且通过此方法可以快速确定定子各项异性材料参数,本次试验与仿真的误差均在3%以内,达到试验与仿真对标的目的。
Accurate calculation of the mode shape and natural frequency of the motor stator is the basis for reducing motor noise and vibration. At present, scholars have disputes about the setting of stator core and winding material property parameters. In this paper, the modal simulation analysis and experimental test of a 2.2 kW permanent magnet brushless DC motor stator system are carried out. First, to give the stator core and the winding materials, The finite element software is used to analyze the relationship between the motor modal frequency and the parameters of the anisotropic materials. According to the modal frequency variation law, a method for correcting the parameters of the anisotropic materials based on the modal frequency is proposed. The method can complete the finite element model parameter correction of the stator. Secondly, the modal experiment is carried out by hammering method to verify the accuracy of the finite element model and determine the effectiveness of the method for correcting the equivalent material parameters. And by this method, the stator material parameters of the stator can be quickly determined. The error of this experiment and simulation is within 3%, achieving the purpose of experiment and simulation benchmarking.
作者
唐友亮
吕品德
张锦
李守军
TANG YouLiang;LV PinDe;ZHANG Jin;LI ShouJun(School of Mechanical and Electrical Engineering,Suqian College,Suqian 223800,China)
出处
《机械强度》
CAS
CSCD
北大核心
2022年第2期503-508,共6页
Journal of Mechanical Strength
基金
江苏省高等学校自然科学研究项目(19KJB440002)
江苏省“333人才工程”项目(BRA202242)资助。
关键词
各向异性材料参数矫正方法
模态分析
模态试验
有限元分析
Anisotropic material parameter correction method
Modal analysis
Modal experiment
Finite element analysis
作者简介
唐友亮,男,1977年生,山东临沂人,汉族,宿迁学院机电工程学院副教授,硕士,研究方向为数字化设计与制造技术、机电液一体化、控制技术。
