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Original Article
Yuanping Xu
Nanjing University of Aeronautics and Astronautics
Corresponding Author
ORCiD: https://orcid.org/0000-0002-5264-2932
License:
This work is licensed under a CC BY 4.0 License. Read Full License
Featured as an innovative powerless and low stiffness suspension approach, diamagnetic levitation technique has trigged intensive interest because of its potential applicability in miniaturized mechanical system. The foundation of diamagnetic levitation system lies in mathematical modeling, which is essential for operating performance optimization and stability predication. However, to date, few literatures concerning the systematic mathematical modeling has been reported. Herein, in this work, a systematic mathematic model for disc-shaped diamagnetically levitated rotor on permanent magnets array is proposed. Based on the proposed model, the magnetic field distribution characteristics, diamagnetic levitation force characteristics (i.e. levitation height and stiffness) expressions and the optimized theorical conditions for realizing stable levitation are achieved. Experiments are also performed to dig out the relationship between levitation height and levitation force. Moreover, the operating stability of rotor under different conditions is evaluated. The experimental results are well in accordance with the theorical predications, confirming the feasibility of this mathematic model.
Keywords
diamagnetic levitation, magnetic levitation, rotor, modeling, validation, stability
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Peer Review Timeline
CURRENT STATUS: Under Review
Version 1
Posted 13 Nov, 2020
No community comments so far
Reviews received
Received 27 Oct, 2021
Reviewer #2 agreed
On 26 Oct, 2021
Review #1 received
Received 07 Apr, 2021
Reviewer #1 agreed
On 30 Mar, 2021
Reviewers invited
Invitations sent on 10 Dec, 2020
Editor assigned
On 02 Nov, 2020
Submission checks complete
On 02 Nov, 2020
Editor invited
On 02 Nov, 2020
First submitted
On 01 Nov, 2020
Metrics
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PDF Downloads: ...
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Subject Areas
Mechanical Engineering
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This preprint is under consideration at Chinese Journal of Mechanical Engineering. A preprint is a preliminary version of a manuscript that has not completed peer review at a journal. Research Square does not conduct peer review prior to posting preprints. The posting of a preprint on this server should not be interpreted as an endorsement of its validity or suitability for dissemination as established information or for guiding clinical practice.
Learn more about In Review
Original Article
Yuanping Xu
Nanjing University of Aeronautics and Astronautics
Corresponding Author
ORCiD: https://orcid.org/0000-0002-5264-2932
Badges
Prescreen
This manuscript passed our Prescreen assessment
Complete author information
Appropriate declaration statements
Potential risks to human health
Prescreen
Peer Review Timeline
CURRENT STATUS: Under Review
Version 1
Posted 13 Nov, 2020
No community comments so far
Reviews received
Received 27 Oct, 2021
Reviewer #2 agreed
On 26 Oct, 2021
Review #1 received
Received 07 Apr, 2021
Reviewer #1 agreed
On 30 Mar, 2021
Reviewers invited
Invitations sent on 10 Dec, 2020
Editor assigned
On 02 Nov, 2020
Submission checks complete
On 02 Nov, 2020
Editor invited
On 02 Nov, 2020
First submitted
On 01 Nov, 2020
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
Subject Areas
Mechanical Engineering
License:
This work is licensed under a CC BY 4.0 License. Read Full License
Featured as an innovative powerless and low stiffness suspension approach, diamagnetic levitation technique has trigged intensive interest because of its potential applicability in miniaturized mechanical system. The foundation of diamagnetic levitation system lies in mathematical modeling, which is essential for operating performance optimization and stability predication. However, to date, few literatures concerning the systematic mathematical modeling has been reported. Herein, in this work, a systematic mathematic model for disc-shaped diamagnetically levitated rotor on permanent magnets array is proposed. Based on the proposed model, the magnetic field distribution characteristics, diamagnetic levitation force characteristics (i.e. levitation height and stiffness) expressions and the optimized theorical conditions for realizing stable levitation are achieved. Experiments are also performed to dig out the relationship between levitation height and levitation force. Moreover, the operating stability of rotor under different conditions is evaluated. The experimental results are well in accordance with the theorical predications, confirming the feasibility of this mathematic model.
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
Figure 9
Figure 10
Figure 11
Figure 12
Figure 13
Figure 14
Figure 15
Figure 16
Figure 17
The full text of this article is available to read as a PDF.
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