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Research Article
Chuanhai Chen
College of Mechanical Science and Engineering
Corresponding Author
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This work is licensed under a CC BY 4.0 License. Read Full License
The traditional probabilistic-based lifetime evaluation methods for motorized spindles neglect the effects of load dynamic and structure difference. Hence, a dynamic-model-based lifetime estimation method combining these effects is proposed to improve the estimating results for motorized spindles, especially in the design stage. Considering the bearings lifetime has dramatically influenced the reliability of motorized spindles, this paper establishes a shaft-bearing-toolholder based on a dynamic model to estimate the bearing group lifetime. The proposed dynamic model is closer to the actual structure in spindles, indicating the stiffness of bearings and contact surface conditional on the inputting radial-and-axial forces is nonlinear. The stiffness model is verified by finite element analysis and experiment. The load applied to bearings is accurately calculated through the dynamic model. Then, the load is introduced to a well-known bearing lifetime model, thereby calculating the lifetime of each bearing and its group. The bearing lifetime results under different conditions of preload, clamping force, and cutting force are discussed.
Keywords
Lifetime, Dynamics model, Motorized spindle bearings, Contact surface, Dynamic cutting force.
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CURRENT STATUS: Published
View the published article at The International Journal of Advanced Manufacturing Technology.
Version 1
Posted 18 May, 2021
No community comments so far
Editorial decision: Minor Revisions Needed
On 04 Jul, 2021
Reviews received
Received 17 May, 2021
Reviewers invited
Invitations sent on 17 May, 2021
Editor assigned
On 24 Apr, 2021
First submitted
On 23 Apr, 2021
Metrics
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PDF Downloads: ...
HTML Views: ...
Subject Areas
Biotechnology and Bioengineering
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A new preprint design is coming!
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See the published version of this preprint at The International Journal of Advanced Manufacturing Technology.
This is a preprint, 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
Research Article
Chuanhai Chen
College of Mechanical Science and Engineering
Corresponding Author
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: Published
View the published article at The International Journal of Advanced Manufacturing Technology.
Version 1
Posted 18 May, 2021
No community comments so far
Editorial decision: Minor Revisions Needed
On 04 Jul, 2021
Reviews received
Received 17 May, 2021
Reviewers invited
Invitations sent on 17 May, 2021
Editor assigned
On 24 Apr, 2021
First submitted
On 23 Apr, 2021
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
Subject Areas
Biotechnology and Bioengineering
License:
This work is licensed under a CC BY 4.0 License. Read Full License
View the published article at The International Journal of Advanced Manufacturing Technology.
The traditional probabilistic-based lifetime evaluation methods for motorized spindles neglect the effects of load dynamic and structure difference. Hence, a dynamic-model-based lifetime estimation method combining these effects is proposed to improve the estimating results for motorized spindles, especially in the design stage. Considering the bearings lifetime has dramatically influenced the reliability of motorized spindles, this paper establishes a shaft-bearing-toolholder based on a dynamic model to estimate the bearing group lifetime. The proposed dynamic model is closer to the actual structure in spindles, indicating the stiffness of bearings and contact surface conditional on the inputting radial-and-axial forces is nonlinear. The stiffness model is verified by finite element analysis and experiment. The load applied to bearings is accurately calculated through the dynamic model. Then, the load is introduced to a well-known bearing lifetime model, thereby calculating the lifetime of each bearing and its group. The bearing lifetime results under different conditions of preload, clamping force, and cutting force are discussed.
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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