摘要
为了解决空间相机内部支承相框中承受竖向载荷的机械轴承与导轨间存在较大摩擦与磨损,严重影响空间相机使用寿命的问题,提出一种多导轨永磁悬浮系统;通过2款电磁场仿真软件Maxwell与MagNet相结合的方式对系统进行静态、动态磁场仿真,并对影响该系统磁路、悬浮力以及磁感应强度分布的因素进行分析。结果表明:在永磁体阵列总长相近的条件下,当永磁体个数由2增加到8时,系统的悬浮力波动可减小约22.06%;在系统中添加隔磁板可使系统保持较稳定的磁感应强度;驱动速度由0.8 m/s增大到1.2 m/s可使系统的悬浮力波动局部减小50%以上。
To solve the problem of large friction and wear between mechanical bearings supporting frames in interior of space cameras used to bear vertical load and guideway,which seriously affected service life of space cameras,a multi-guideway permanent magnetic suspension system was proposed.Two electromagnetic field simulation softwares Maxwell and MagNet were combined to complete static and dynamic magnetic field simulation of the system.Factors affecting magnetic circuit,suspension force,and magnetic induction intensity distribution of the system were analyzed.The results show that under the condition that total length of permanent magnet array is similar,suspension force fluctuation of the system can be reduced by about 22.06% when the number of permanent magnets increases from 2 to 8.Magnetic induction density of the system can be kept relatively stable by adding a magnetic isolation plate in the system.When driving speed is increased from 0.8 m/s to 1.2 m/s,levitation force fluctuation of the system can be reduced by more than 50% locally.
作者
马彦超
金超武
沈权
周瑾
徐园平
MA Yanchao;JIN Chaowu;SHEN Quan;ZHOU Jin;XU Yuanping(College of Mechanical and Electrical Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,Jiangsu,China)
出处
《济南大学学报（自然科学版）》
CAS
北大核心
2022年第1期92-99,共8页
Journal of University of Jinan(Science and Technology)
基金
江苏省重点研发计划项目(BE2019122)
江苏省“六大人才高峰”项目(JNHB-041)。
关键词
永磁导轨
磁路设计
有限元仿真
悬浮力
permanent magnetic guideway
magnetic circuit design
finite element simulation
suspension force
