文献详情
Magnetic field analysis of novel spherical actuators with three-dimensional pole arrays
文献类型期刊
作者Yan, Liang[1];Liang, Fengqi[2];Jiao, Zongxia[3];Wang, Tianyi[4]
机构
通讯作者Yan, L (reprint author), Beihang Univ, Sch Automat Sci & Elect Engn, Beijing 100191, Peoples R China.; Yan, L (reprint author), Beihang Univ, Shenzhen Inst, Shenzhen 518000, Guangdong, Peoples R China.
来源信息年:2016  卷:87  期:6  页码范围:065006  
期刊信息REVIEW OF SCIENTIFIC INSTRUMENTS影响因子和分区  ISSN:0034-6748
增刊正刊
摘要Spherical actuator is an electric device that can achieve multiple degree-of-freedom rotary motions in a single joint. Permanent magnet array is a key factor that influences the output performance of electromagnetic spherical actuators. In this paper, a novel three-dimensional (3D) pole array is proposed to improve the system flux density and thus the output performance. Analysis of magnetic field distribution is extremely important for spherical actuators with 3D magnet arrays. Thus, the investigation of magnetic field is conducted in analytical, numerical, and experimental ways. The general solution of magnetic scalar potential in 3D space is formulated analytically based on Laplace's equations and spherical harmonics, and then specific solutions of the magnetic scalar potential and magnetic flux density are obtained by using boundary conditions. Numerical computation is utilized to validate the analytical model and to facilitate the observation of the magnetic field variation. A research prototype and a testing platform of magnetic field have been developed for experimental study. The testing platform can move the probe to any position around the spherical actuator and measure the flux density automatically. Experiments are conducted to obtain the flux distribution. Both numerical and experimental results validate the analytical model well. Published by AIP Publishing.
收录情况SCIE(WOS:000379177000072)  EI(20162702566554)  PubMed(27370488)  
所属部门自动化科学与电气工程学院
DOI10.1063/1.4953920
学科仪器仪表;物理:应用
百度学术Magnetic field analysis of novel spherical actuators with three-dimensional pole arrays
语言外文
人气指数113
浏览次数113
基金National Natural Science Foundation of China (NSFC) [51575026]; National Key Basic Research Program (973 Program) of China [2014CB046406, NSFC 51235002, 51175012]; Fundamental Research Funds for the Central Universities; Science and Technology on Aircraft Control Laboratory and Fundamental Research on National Defense Program of Chinad [A0420132306]
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