计量学报2024，Vol.45Issue(6)：857-863,7.DOI:10.3969/j.issn.1000-1158.2024.06.11
电磁式线-角振动激振器气隙磁场特性分析
Analysis of Air-gap Magnetic Field of An Electromagnetic Linear-angular Vibration Exciter
摘要
Abstract
To solve the problem that the traditional uniaxial vibrator cannot reproduce the linear-angular space coupling motion,a magnetic circuit structure of an electromagnetic linear-angular vibration exciter that can realize compound vibration is proposed,and the characteristicsits of air-gap magnetic field are analyzed.Firstly,the magnetic circuit and coil structure of the exciter are constructed.An analytical model of the air-gap magnetic field is established based on the equivalent current method,and the maximum relative error with the finite element results is 1.25％,which verified the correctness of the analytical model.Then,the influence of each magnetic circuit parameter on the distribution characteristics of the air-gap magnetic field and the coupling effect between the magnetic field generated by the coil current and the original magnetic field are studied,and the force of the coil during the movement is analyzed.Finally,the prototype of the magnetic circuit topology of the exciter is developed,the linear and the angular vibration air-gap magnetic field are measured,and the maximum relative error between the measured results and the finite element results is less than 5％,which further verifies the effectiveness of the proposed magnetic circuit structure.关键词
振动计量/激振器/等效电流法/线-角振动/气隙磁场/电磁耦合Key words
vibration metrology/exciter/equivalent current method/linear-angular vibration/air-gap magnetic field/electromagnetic coupling分类
通用工业技术引用本文复制引用
俞金辉,唐波,陈伟,杨建根,何闻..电磁式线-角振动激振器气隙磁场特性分析[J].计量学报,2024,45(6):857-863,7.基金项目
国家重点研发计划(2019YFC1509503) （2019YFC1509503）
浙江省自然科学基金(LY21E050017) （LY21E050017）
国家市场监督管理总局科技计划(2020MK189) （2020MK189）
宁波市重点研发计划(2022Z092) （2022Z092）
