Numerical study on magnetic field characteristics of typical permanent magnet
Abstract. Selecting a single piece of typical rectangular open planar magnet，with its axial magnetization, to build a finite element model. Based on ANSYS software, the article used NdFeB45 material properties, giving 100×100×10mm to fit the relationship of three-dimensional size. In the air zone as 10 times as model size, it adopted a static simulation analysis of the effect on relationship between axial magnetic distance and magnetic field strength. The magnetic field contours as simulation results, after the Origin software fitting process, obtained an equation is:Hy=655329.48927e-X/21.03553-1748.29209;Comparing with the formula:Hy=H0e-cy=πμm/2Le-cy , which reflectedthe basic characteristics of permanent magnetic field, and with the numerical results by Jing-tian LI using equivalent magnetic charge method, they all appeared: the magnetic field strength exponentially decrease along with the magnetic distance increases, the magnetic field non-uniformity coefficient is of 4.628% deviation, the fitting correlation coefficient R is 0.99924; As a result of the numerical verification results, it also visually response to the magnetic field parameters of open permanent magnet.
Chang-liang SHI Yi-shun ZHANG Hong-guang JIAO
School of Material Science and Engineering, Henan Polytechnic University,Jiaozuo 454003, Henan, Chin School of Material Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, Henan, Chi
国际会议
桂林
英文
1-6
2010-11-16（万方平台首次上网日期，不代表论文的发表时间）