Analysis of a Novel Magnetic-Hydrodynamic Double Levitated Motor for an Implantable Axial Flow Blood Pump
This paper presents a novel design for a bearingless axial flow blood pump based on the magnetic-hydrodynamic double levitated concept. In the axial direction, the magnetic levitation system consisted of two pairs of permanent magnet rings offsets the force of fluid. The hydrodynamic shell mounted o...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2020-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2020/8833994 |
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| _version_ | 1832552558223163392 |
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| author | Liang Wang Xiaoyan Tang Zhong Yun Chuang Xiang |
| author_facet | Liang Wang Xiaoyan Tang Zhong Yun Chuang Xiang |
| author_sort | Liang Wang |
| collection | DOAJ |
| description | This paper presents a novel design for a bearingless axial flow blood pump based on the magnetic-hydrodynamic double levitated concept. In the axial direction, the magnetic levitation system consisted of two pairs of permanent magnet rings offsets the force of fluid. The hydrodynamic shell mounted on the impeller rotor is designed for generating dynamic pressure, which can balance the radial force like gravity when the blood pump is working. Because of the unsteady force and torque acting on the rotor and the passive suspension, the position of the rotor is not steady. The suspension force, stiffness, and torque of the rotor are calculated by the theoretical method and finite element method. Then, the dynamics of the rotor are analyzed. Arrangements of Hall-effect sensors with the corresponding data acquisition system which can measure the axial displacement of the rotor are explained. The sensorless drive control system for the blood pump is described too. With a prototype pump, an external circulation experiment system is built and then the axial and radial displacements of the rotor are measured by using Hall-effect sensors and the laser vibrometer under different working conditions. |
| format | Article |
| id | doaj-art-3bef9756a55e4af9bc1699a5ee6219dd |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-3bef9756a55e4af9bc1699a5ee6219dd2025-02-03T05:58:24ZengWileyShock and Vibration1070-96221875-92032020-01-01202010.1155/2020/88339948833994Analysis of a Novel Magnetic-Hydrodynamic Double Levitated Motor for an Implantable Axial Flow Blood PumpLiang Wang0Xiaoyan Tang1Zhong Yun2Chuang Xiang3School of Mechanical and Electrical Engineering, Central South University, Changsha 410083, ChinaSchool of Mechanical and Electrical Engineering, Central South University, Changsha 410083, ChinaSchool of Mechanical and Electrical Engineering, Central South University, Changsha 410083, ChinaSchool of Mechanical and Electrical Engineering, Central South University, Changsha 410083, ChinaThis paper presents a novel design for a bearingless axial flow blood pump based on the magnetic-hydrodynamic double levitated concept. In the axial direction, the magnetic levitation system consisted of two pairs of permanent magnet rings offsets the force of fluid. The hydrodynamic shell mounted on the impeller rotor is designed for generating dynamic pressure, which can balance the radial force like gravity when the blood pump is working. Because of the unsteady force and torque acting on the rotor and the passive suspension, the position of the rotor is not steady. The suspension force, stiffness, and torque of the rotor are calculated by the theoretical method and finite element method. Then, the dynamics of the rotor are analyzed. Arrangements of Hall-effect sensors with the corresponding data acquisition system which can measure the axial displacement of the rotor are explained. The sensorless drive control system for the blood pump is described too. With a prototype pump, an external circulation experiment system is built and then the axial and radial displacements of the rotor are measured by using Hall-effect sensors and the laser vibrometer under different working conditions.http://dx.doi.org/10.1155/2020/8833994 |
| spellingShingle | Liang Wang Xiaoyan Tang Zhong Yun Chuang Xiang Analysis of a Novel Magnetic-Hydrodynamic Double Levitated Motor for an Implantable Axial Flow Blood Pump Shock and Vibration |
| title | Analysis of a Novel Magnetic-Hydrodynamic Double Levitated Motor for an Implantable Axial Flow Blood Pump |
| title_full | Analysis of a Novel Magnetic-Hydrodynamic Double Levitated Motor for an Implantable Axial Flow Blood Pump |
| title_fullStr | Analysis of a Novel Magnetic-Hydrodynamic Double Levitated Motor for an Implantable Axial Flow Blood Pump |
| title_full_unstemmed | Analysis of a Novel Magnetic-Hydrodynamic Double Levitated Motor for an Implantable Axial Flow Blood Pump |
| title_short | Analysis of a Novel Magnetic-Hydrodynamic Double Levitated Motor for an Implantable Axial Flow Blood Pump |
| title_sort | analysis of a novel magnetic hydrodynamic double levitated motor for an implantable axial flow blood pump |
| url | http://dx.doi.org/10.1155/2020/8833994 |
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