人工肾脏泵用磁悬浮轴承设计与磁力特性分析

金俊杰; 王岩峰; 徐程程; 陆文轩; 张晓友; 孙凤; 徐方超

doi:10.3969/j.issn.0258-2724.20230090

人工肾脏泵用磁悬浮轴承设计与磁力特性分析

doi: 10.3969/j.issn.0258-2724.20230090

金俊杰^1,,
王岩峰¹,
徐程程¹,
陆文轩²,
张晓友^{1, 2, ,},
孙凤¹,
徐方超¹

1.
沈阳工业大学机械工程学院，中国沈阳 110870
2.
日本工业大学机械工学院，日本埼玉 345-8501

基金项目: 国家自然科学基金（52005345，52005344）；国家重点研发计划（2020YFC2006701）；辽宁省教育厅项目（ LFGD2020002）；辽宁省“揭榜挂帅”科技重大专项（2022JH1/10400027）

详细信息

作者简介:
金俊杰（1982—），女，副教授，研究方向为机械系统多元驱动及其控制技术，E-mail：jinjunjie@sut.edu.cn

通讯作者:
张晓友（1966—），男，教授，研究方向为高精度磁悬浮轴承的研究，E-mail：zhang.xiaoyou@nit.ac.jp

中图分类号: TH133.3
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- 文章访问数: 38
- HTML全文浏览量: 21
- PDF下载量: 10
- 被引次数: 0
出版历程
- 收稿日期: 2023-03-06
- 修回日期: 2023-06-20
- 网络出版日期: 2024-03-27

Design and Magnetic Force Characteristic Analysis of Magnetic Levitation Bearing for Artificial Kidney Pumps

1.
School of Mechanical Engineering, Shenyang University of Technology, Shenyang 110870, China
2.
Department of Mechanical Engineering, Nippon Institute of Technology, Saitama 345-8501, Japan

摘要

摘要:
代替透析膜的持续离心分离新方法改善了依赖血液透析治疗的肾脏病患者生活质量，随之，人工肾脏泵的研究被很多学者关注. 但传统人工肾脏泵采用滚动轴承进行支撑，存在溶血高、血栓率高等问题，为此，本文利用磁悬浮轴承的非接触、无润滑、高转速等优点，研发了一种应用于人工肾脏泵的结构紧凑且节能的单自由度控制型磁悬浮轴承. 利用有限元分析软件进行仿真，探索径向被动控制部分和轴向主动控制部分的设计参数，并对总体进行仿真验证，进而对磁悬浮轴承进行结构性能评估. 结果表明：仿真与实验的径向位移刚度系数分别为47.432 N/mm和49.531 N/mm，轴向电流刚度系数分别为0.144 N/AT和0.135 N/AT，轴向位移刚度系数为223.071 N/mm，满足该磁悬浮轴承的五自由度稳定悬浮要求；所设计的磁悬浮轴承简化了系统结构，减小了控制难度以及降低了系统功耗.
- 人工肾脏泵 /
- 单自由度 /
- 磁悬浮轴承 /
- 有限元分析
Abstract:
The new method of continuous centrifugal separation instead of dialysis membrane has improved the quality of life of patients with kidney disease who depend on hemodialysis treatment. As a result, the research on artificial kidney pumps has been paid much attention by many scholars, but the conventional artificial kidney pump is supported by rolling bearings, and it thus causes problems such as high hemolysis and high thrombosis rate. In order to solve these problems, this paper developed a compact and energy-saving single-degree-of-freedom controlled magnetic levitation bearing applied to an artificial kidney pump by using the advantages of non-contact, non-lubrication, and high rotation speed of magnetic levitation bearing. The finite element analysis software was used for simulation to explore the design parameters of the radial passive control part and the axial active control part, and the overall simulation was verified. Then the structural performance of the magnetic levitation bearing was evaluated. The results show that the simulated and experimental radial displacement stiffness coefficients are 47.432 N/mm and 49.531 N/mm; the axial current stiffness coefficients are 0.144 N/AT and 0.135 N/AT, and the axial displacement stiffness coefficient is 223.071 N/mm, which meet the requirements of five-degree-of-freedom stable suspension of this magnetic levitation bearing. The designed magnetic levitation bearing simplifies the system structure, reduces the control difficulty, and lowers the power consumption of the system.
- artificial kidney pump /
- single degree of freedom /
- magnetic levitation bearings /
- finite element analysis

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图 1 人工肾脏泵结构示意

Figure 1. Artificial kidney pump structure

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图 2 单自由度控制型磁悬浮轴承

Figure 2. Single-degree-of-freedom controlled magnetic levitation bearing

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图 3 径向恢复力

Figure 3. Radial restoring force

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图 4 倾斜方向恢复力矩

Figure 4. Restoring torque along tilt direction

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图 5 径向永磁铁配置

Figure 5. Configuration of radial permanent magnets

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图 6 径向位移和径向力的关系

Figure 6. Relationship between radial displacement and radial force

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图 7 轴向位移和轴向力的关系

Figure 7. Relationship between axial displacement and axial force

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图 8 轴向永磁铁和线圈配置

Figure 8. Configuration of axial permanent magnet and coil

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图 9 线圈电流和轴向力的关系

Figure 9. Relationship between coil current and axial force

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图 10 初始平衡位置的磁场强度仿真云图

Figure 10. Simulation cloud of magnetic field strength at initial equilibrium position

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图 11 转子向上移动0.3mm的磁场强度仿真云图

Figure 11. Simulation cloud of magnetic field strength for 0.3 mm upward movement of rotor

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图 12 径向位移和径向力的关系

Figure 12. Relationship between radial displacement and radial force

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图 13 线圈电流和轴向力的关系

Figure 13. Relationship between coil current and axial force

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图 14 径向力和线圈电流的关系

Figure 14. Relationship between radial force and coil current

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图 15 轴向位移和轴向力的关系

Figure 15. Relationship between axial displacement and axial force

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图 16 单自由度磁悬浮轴承

Figure 16. Single-degree-of-freedom magnetic levitation bearing

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图 17 单自由度磁悬浮轴承的转子

Figure 17. Rotor for single-degree-of-freedom magnetic levitation bearing

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图 18 轴向电流刚度实验装置

Figure 18. Experimental device for axial current stiffness

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图 19 线圈电流和轴向力的关系

Figure 19. Relationship between coil current and axial force

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图 20 径向位移刚度实验装置

Figure 20. Experimental device for radial displacement stiffness

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图 21 径向位移和径向力的关系

Figure 21. Relationship between radial displacement and radial force

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表 1 径向永磁铁参数

Table 1. Radial permanent magnet parameters

参数	数值
定子永磁铁外径 D₁/mm	25
定子永磁铁内径 d₁/mm	19
定子永磁铁高度 h₁/mm	6
动子永磁铁外径 D₂/mm	16
动子永磁铁内径 d₂/mm	8
动子永磁铁高度 h₂/mm	6
两永磁铁的轴向间隙 H/mm	2
永磁铁间距/mm	1.5
永磁铁材料	钕铁硼N52

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表 2 轴向主动控制结构参数

Table 2. Structural parameters of axial active control

参数	数值
永磁铁材料	钕铁硼N33
永磁铁外径 D₃ （内径 d₃）/mm	37（31）
永磁铁的高度 h₃/mm	2
法兰型背轭外径 D₄ （内径 d₄） /mm	59（29）
法兰型背轭总高度 h₄/mm	10
法兰型背轭槽外径 D₅ （内径 d₅） /mm	51（37）
法兰型背轭槽深 h₅/mm	7
磁轭总高 h₆/mm	5
磁轭槽深 h₇/mm	2
线圈线径/mm	0.493
线圈匝数	204
线圈截面积/mm²	49
线圈电感/mH	2.431
线圈电阻/Ω	3.252

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参考文献(16)

[1]	BIKBOV B, PURCELL C A, LEVEY A S, et al. Global, regional, and national burden of chronic kidney disease, 1990—2017: a systematic analysis for the Global Burden of Disease Study 2017[J]. The Lancet, 2020, 395(10225): 709-733. doi: 10.1016/S0140-6736(20)30045-3
[2]	MOLLAHOSSEINI A, ABDELRASOUL A, SHOKER A. A critical review of recent advances in hemodialysis membranes hemocompatibility and guidelines for future development[J]. Materials Chemistry and Physics, 2020, 248: 122911.1-122911. 29.
[3]	ZHILO N M, LITINSKAIA E L, BAZAEV N A. Control system for glucose level regulation in peritoneal dialysis[J]. Journal of Physics: Conference Series, 2021, 2091(1): 012019.1-012019.19.
[4]	ZHILO N M, BAZAEV N A. Control of wearable artificial kidney[C]//2019 III International Conference on Control in Technical Systems (CTS). Petersburg: IEEE, 2020: 31-34.
[5]	VAN GELDER M K, JONG J A W, FOLKERTSMA L, et al. Urea removal strategies for dialysate regeneration in a wearable artificial kidney[J]. Biomaterials, 2020, 234: 119735. 1-119735.18
[6]	FLEMING G M. Renal replacement therapy review: past, present and future[J]. Organogenesis, 2011, 7(1): 2-12. doi: 10.4161/org.7.1.13997
[7]	VAN GELDER M K, JONG J A W, FOLKERTSMA L, et al. Urea removal strategies for dialysate regeneration in a wearable artificial kidney[J]. Biomaterials, 2020, 234: 119735. 1-119735.18
[8]	GURA V, RIVARA M B, BIEBER S, et al. A wearable artificial kidney for patients with end-stage renal disease[J]. JCI Insight, 2016, 1(8): e86397.1-e86397.15
[9]	ARIYOSHI K, ISOYAMA T, HARA S, et al. Basic study of a centrifugal separator for the implantable centrifugal artificial kidney[J]. Transactions of Japanese Society for Medical & Biological Engineering, 2017, 55: 459-459.
[10]	MASUZAWA T. Magnetically suspended blood pump[J]. Journal of the Japan Society of Applied Electromagnetics and Mechanics, 2017, 25(3): 325-331. doi: 10.14243/jsaem.25.325
[11]	胡余生,李立毅,郭伟林,等. 基于不等磁路面积设计方法的磁轴承刚度[J]. 西南交通大学学报,2022,57(3):648-656. HU Yusheng, LI Liyi, GUO Weilin, et al. Support stiffness of magnetic bearing based on unequal magnetic circuit area design method[J]. Journal of Southwest Jiaotong University, 2022, 57(3): 648-656.
[12]	周扬,周瑾,张越,等. 基于RBF近似模型的磁悬浮轴承结构优化设计[J]. 西南交通大学学报,2022,57(3):682-692. ZHOU Yang, ZHOU Jin, ZHANG Yue, et al. Optimum structural design of active magnetic bearing based on RBF approximation model[J]. Journal of Southwest Jiaotong University, 2022, 57(3): 682-692.
[13]	钟志贤,蔡忠侯,祁雁英. 单自由度磁悬浮系统无模型自适应控制的研究[J]. 西南交通大学学报,2022,57(3):549-557,581. ZHONG Zhixian, CAI Zhonghou, QI Yanying. Model-free adaptive control for single-degree-of-freedom magnetically levitated system[J]. Journal of Southwest Jiaotong University, 2022, 57(3): 549-557,581.
[14]	贺艳晖,甘杨俊杰,周亮. 主动磁悬浮轴承在余热发电机的应用研究[J]. 西南交通大学学报,2022,57(3):657-664. doi: 10.3969/j.issn.0258-2724.20210860 HE Yanhui, GAN Yangjunjie, ZHOU Liang. Application of active magnetic bearing in waste heat generator[J]. Journal of Southwest Jiaotong University, 2022, 57(3): 657-664. doi: 10.3969/j.issn.0258-2724.20210860
[15]	ASAMA J, SHINSHI T, HOSHI H, et al. A new design for a compact centrifugal blood pump with a magnetically levitated rotor[J]. ASAIO Journal, 2004, 50(6): 550-556. doi: 10.1097/01.MAT.0000144364.62671.5A
[16]	关勇,李红伟,刘淑琴. 轴流式磁悬浮人工心脏泵磁悬浮轴承系统设计[J]. 山东大学学报(工学版),2011,41(1):151-155. GUAN Yong, LI Hongwei, LIU Shuqin. System design of magnetic bearings in an axial-flow artificial blood pump[J]. Journal of Shandong University (Engineering Science), 2011, 41(1): 151-155.