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Effect of elastic throttling structure on the load performance of aerostatic radial bearing

Dongju Chen (Mechanical Industry Key Laboratory of Heavy Machine Tool Digital Design and Testing, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing, China)
Xuan Zhang (Mechanical Industry Key Laboratory of Heavy Machine Tool Digital Design and Testing, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing, China)
Ri Pan (Mechanical Industry Key Laboratory of Heavy Machine Tool Digital Design and Testing, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing, China)
Kun Sun (Mechanical Industry Key Laboratory of Heavy Machine Tool Digital Design and Testing, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing, China)
Jinwei Fan (Mechanical Industry Key Laboratory of Heavy Machine Tool Digital Design and Testing, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing, China)

Industrial Lubrication and Tribology

ISSN: 0036-8792

Article publication date: 2 November 2022

Issue publication date: 2 January 2023

86

Abstract

Purpose

This research aims to combine the throttling structure with the elastic element to enhance the load performance of aerostatic radial bearing.

Design/methodology/approach

In this research, a fluid–solid coupling model of the elastic throttling structure is established while considering the interaction between the elastic element and the flow field. The effects of elastic element structural parameters on the stiffness and load capacity of aerostatic radial bearing are then researched. Finally, the effect of elastic element modulus on air film load performance and elastic element deformation is analyzed.

Findings

The results indicate that the aerostatic radial bearing with elastic element can significantly improve the load capacity and stiffness when compared to the common aerostatic bearing. By choosing the proper combination of parameters, the load performance can be improved by at least 16%.

Originality/value

The throttling structure of aerostatic bearing is optimized in this work, which significantly enhances the load performance of the aerostatic bearing.

Keywords

Acknowledgements

This research was supported by the National Natural Science Foundation of China Grant No.51875005.

Declaration of competing interest: The authors declare that they have no financial and personal relationships with other people or organizations that can inappropriately influence our work, there is no professional or other personal interest of any nature or kind in any product, service and/or company that could be construed as influencing the position presented in, or the review of, the manuscript entitled, ‘Effect of elastic throttling structure on the load performance of aerostatic radial bearing’.

Citation

Chen, D., Zhang, X., Pan, R., Sun, K. and Fan, J. (2023), "Effect of elastic throttling structure on the load performance of aerostatic radial bearing", Industrial Lubrication and Tribology, Vol. 75 No. 1, pp. 82-90. https://doi.org/10.1108/ILT-07-2022-0220

Publisher

:

Emerald Publishing Limited

Copyright © 2022, Emerald Publishing Limited

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