方形钕铁硼永磁铁是一种用于制作磁吸式陶瓷磁粉打印机内磁性打印版的磁性材料,因此有必要研究其磁场分布特征和磁力计算方法.先基于电磁场理论推导磁铁的磁力计算公式,再应用有限元法电磁学软件FEMM(Finite Element Method Magnetics)对其进行仿真分析,最后使用磁感应强度测量仪测量其磁感应强度.通过比较和分析计算、仿真和测量的结果,验证了理论计算和有限元仿真方法的有效性和可靠性,推导了方形钕铁硼永磁铁的表面磁感应强度随方形永磁铁尺寸变化的规律.
Magnetic analysis and FEMM simulation of cylindrical NdFeB permanent magnet
Square neodymium iron boron(NdFeB)permanent magnets are essential components in the fabrication of magnetic printing plates within magnetically assisted ceramic toner printers.Investigating their magnetic field distri-bution characteristics and magnetic force calculation methods is paramount for optimizing printer performance.This study begins by deriving magnetic force calculation formulas based on electromagnetic field theory.Subsequently,Finite Element Method Magnetics(FEMM)software is employed for rigorous simulation analysis.Finally,experi-mental measurements using a magnetic induction intensity gauge are conducted to validate the simulated results.Through comprehensive comparison and analysis of computational,simulated,and experimental data,the effective-ness and reliability of both theoretical calculations and finite element simulations are affirmed.Moreover,a system-atic examination reveals the relationship between the surface magnetic induction intensity of square NdFeB perma-nent magnets and variations in the dimensions of square magnets,providing crucial insights for magnet optimization in printing applications.
NdFeB permanent magnetFEMMmagnetic induction intensitymagnetic force
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