Leakage-free optimization of micro herringbone grooved journal bearings with a virtual node method
Industrial Lubrication and Tribology
ISSN: 0036-8792
Article publication date: 22 September 2021
Issue publication date: 13 October 2021
Abstract
Purpose
This study aims to develop a new method to treat the numerical singularity at the critical nodes of two skew coordinates, and optimize the leakage of micro herringbone grooved journal bearings (MHGJBs) with this method.
Design/methodology/approach
A side leakage numerical algorithm is proposed by using the skew meshes with a virtual node (SMVN) method to evaluate the effects of groove angle, bank/groove ratio, groove depth and groove number on load capacity, friction and side leakage of MHGJB.
Findings
The SMVN method is effective in treating the numerical singularity at the critical nodes of two skew coordinates. Besides, a group of optimized parameters of micro herringbone groove is obtained which can not only minimize the side leakage but also improve the load capacity and friction force.
Originality/value
A virtual node method was proposed, which can significantly improve the calculation accuracy in the side leakage model.
Keywords
Acknowledgements
The author(s) disclosed receipt of the following financial support for the research, authorship and/or publication of this article: the National Natural Science Foundation of China (51975064), Project No. 2020CDJGFCD001 supported by the Fundamental Research Funds for the Central Universities and the General.
Citation
Yin, L., Zheng, X., Tang, D., Han, Y., Zhao, R. and Chen, Y. (2021), "Leakage-free optimization of micro herringbone grooved journal bearings with a virtual node method", Industrial Lubrication and Tribology, Vol. 73 No. 7, pp. 1061-1073. https://doi.org/10.1108/ILT-05-2021-0177
Publisher
:Emerald Publishing Limited
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