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Numerical Calculation for Whirling Motion of a Centrifugal Blood Pump with Conical Spiral Groove Bearings

机译:锥形螺旋槽轴承离心血泵旋转运动的数值计算

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Whirling motion of a pump impeller was calculated for the centrifugal blood pump with Conical Spiral Groove Bearings to get a criterion for the instability of impeller whirling Motion. The motion of the centrifugal blood pump impeller was calculated based on a spring damping model, and unsteady flow in the pump was computed using the commercial CFD package ANSYS CFX. Also the whirling motion of rotating impeller was measured using two displacement sensors fixed to the blood pump casing. The numerical calculations were done for the blood pump impeller with conical spiral groove bearings, and impeller whirling motion was evaluated.
机译:为离心血液泵计算泵叶轮的旋转运动,具有锥形螺旋槽轴承,以获得叶轮旋转运动的不稳定性的标准。基于弹簧阻尼模型计算离心血泵叶轮的运动,并且使用商业CFD封装ANSYS CFX计算泵中的不稳定流动。此外,使用固定到血泵壳的两个位移传感器测量旋转叶轮的旋转运动。为血泵叶轮进行了数值计算,具有锥形螺旋槽轴承,并评估叶轮旋转运动。

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