Optimization of a Hybrid Magnetic Bearing for a Magnetically Levitated Blood Pump via 3-D FEA.
Optimization of a Hybrid Magnetic Bearing for a Magnetically Levitated Blood Pump via 3-D FEA.
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DOI：
10.1016/j.mechatronics.2011.07.010
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发表时间：
2011-10
期刊：
影响因子：
--
通讯作者：
Day SW
中科院分区：
文献类型：
--
作者：
Cheng S;Olles MW;Burger AF;Day SW
In order to improve the performance of a magnetically levitated (maglev) axial flow blood pump, three-dimensional (3-D) finite element analysis (FEA) was used to optimize the design of a hybrid magnetic bearing (HMB). Radial, axial, and current stiffness of multiple design variations of the HMB were calculated using a 3-D FEA package and verified by experimental results. As compared with the original design, the optimized HMB had twice the axial stiffness with the resulting increase of negative radial stiffness partially compensated for by increased current stiffness. Accordingly, the performance of the maglev axial flow blood pump with the optimized HMBs was improved: the maximum pump speed was increased from 6000 rpm to 9000 rpm (50%). The radial, axial and current stiffness of the HMB was found to be linear at nominal operational position from both 3-D FEA and empirical measurements. Stiffness values determined by FEA and empirical measurements agreed well with one another. The magnetic flux density distribution and flux loop of the HMB were also visualized via 3-D FEA which confirms the designers’ initial assumption about the function of this HMB.
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影响因子：
2.4
作者：
Cheng, Shanbao;Olles, Mark W.;Day, Steven W.
通讯作者：
Day, Steven W.
影响因子：
2.1
作者：
Hijikata, Kimio;Kobayashi, Shunsuke;Fukao, Tadashi
通讯作者：
Fukao, Tadashi
影响因子：
3.3
作者：
Kim, HY;Lee, CW
通讯作者：
Lee, CW
影响因子：
3.3
作者：
Kimman, M. H.;Langen, H. H.;Schmidt, R. H. Munnig
通讯作者：
Schmidt, R. H. Munnig
影响因子：
2.1
作者：
Jiancheng, Fang;Jinji, Sun;Xi, Wang
通讯作者：
Xi, Wang