磁极位置对永磁轴流式血泵驱动能力影响的研究  

Effects of Positions of Magnetic Poles on Driving Capability of Permanent Magnet Axial-flow Blood Pump

作　　者：祝忠彦[1] 谭建平[1] 许焰[1] 刘云龙[1] 刘志坚[1] 刘恒拓[1] 

机构地区：[1]中南大学机电工程学院,长沙410083

出　　处：《机械科学与技术》2011年第9期1543-1547,1552,共6页Mechanical Science and Technology for Aerospace Engineering

基　　金：国家高技术研究发展计划(863)专项经费资助(2006AA02Z4E8);国家自然科学基金项目(51075403;50775223;50875266);教育部博士学科点专项基金项目(20070533125);长沙大学资助科研项目(CDJJ-09010208)资助

摘　　要：为提高永磁轴流式血泵的驱动能力,利用ANSYS有限元分析软件仿真计算了大间隙磁力驱动系统的驱动力矩,通过实验计算了永磁轴流式血泵的最大负载力矩,得到了磁极相对位置(系统耦合距离、两电磁体间磁极距离、永磁体偏离两电磁体中心位置的距离、两电磁体间的相对夹角等)对系统驱动能力的影响。结果表明:通过减小系统耦合距离,减小两电磁体间磁极距离,将永磁体置于偏离电磁体中心位置8 mm左右的位置,将两电磁体垂直放置等方法,可以提高系统驱动能力。To improve the driving capability of a permanent magnet axial flow blood pump,we simulate its driving torque and calculate its largest load torque with the ANSYS software,thus obtaining the effects of the relative positions of its magnetic poles,coupling distance,electromagnetic pole distance,distance of permanent magnet away from the center of two electromagnets,the relative angle between the two electromagnets on its driving capability.The simulation results show that its driving capability can be enhanced through reducing the coupling distance and the distance between the magnetic poles of two electromagnets,by placing the permanent magnet at the position around 8 mm away from the electromagnets and by locating the two electromagnets vertically.

关 键 词：磁极位置 驱动能力 大间隙 永磁 轴流式血泵 

分 类 号：TH133.4[机械工程—机械制造及自动化]