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首页> 外文期刊>IEEE / ASME Transactions on Mechatronics >Mixed Flow Artificial Heart Pump With Axial Self-Bearing Motor
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Mixed Flow Artificial Heart Pump With Axial Self-Bearing Motor

机译：轴流自轴承混合流人工心脏泵

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摘要

With the objective of developing a small blood pump with a levitated rotor, we propose a design scheme for an axial-type self-bearing motor. The axial type motor, which is basically composed of a disc motor and an axial magnetic bearing, controls both the rotation and the axial translation of the rotor. The proposed motor is similar to the bidirectional disc motor, except for changing the magnitudes of both sides of the flux to control the axial attractive force. However, the radial and tilt directions rely on passive stability, and, therefore, the rotor has poor damping which might cause damage to blood constituents. The design includes a hydro-dynamic bearing for improving radial support properties. Finally, to confirm its functionality, an experimental prototype of the proposed motor has been constructed and incorporated into a mixed flow blood pump. The results indicated that the bidirectional axial-type self-bearing motor had high efficiency as a small continuous flow blood pump, delivering sufficient flow rate and pressure head.
机译：为了开发一种带有悬浮转子的小型血泵，我们提出了一种轴向自轴承电动机的设计方案。轴向型电动机主要由磁盘电动机和轴向磁轴承组成，既控制转子的旋转又控制其轴向移动。除了改变磁通量两侧的大小以控制轴向吸引力外，所提出的电动机与双向圆盘电动机相似。但是，径向和倾斜方向依赖于被动稳定性，因此，转子的阻尼性较差，可能会损坏血液成分。该设计包括用于改善径向支撑性能的流体动力轴承。最后，为了确认其功能，已构造了所提出的电动机的实验原型，并将其并入混合流血泵中。结果表明，该双向轴向自轴承电动机作为小型连续流血泵具有较高的效率，可提供足够的流量和压头。

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