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International Journal of Rotating Machinery
Volume 2017, Article ID 5916491, 9 pages
Research Article

Study on Driving Performance of the Axial-Flow Blood Pump under the Condition of Large Gap

Department of Mechanical & Electrical Engineering, Changsha University, Changsha 410003, China

Correspondence should be addressed to Yan Xu; moc.361@616y_x

Received 1 October 2016; Revised 22 December 2016; Accepted 10 January 2017; Published 13 February 2017

Academic Editor: Hyeong Joon Ahn

Copyright © 2017 Yan Xu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The paper demonstrates an improvement of the simulation and computational methods for research on the system magnetic field and driving performance of the large gap magnetic drive system, which is used to drive the axial flow blood pump. The operational principle and structure of large gap magnetic drive system are narrated. Ansoft is adopted to simulate a three-dimensional driving torque to improve accuracy of computation. Experiments and theoretical study show that the use of Z10-T25 oriented silicon steel sheets as the electromagnetic core material can remarkably improve the system driving performance as well as optimize the volume and weight of the electromagnets. So the electromagnet made with oriented silicon steel sheets is conducive to improving the driving performance.