Optimal design of parallel sliders with square-shaped textures considering fluid-structure interaction
Industrial Lubrication and Tribology
ISSN: 0036-8792
Article publication date: 7 May 2019
Issue publication date: 7 May 2019
Abstract
Purpose
Surface texturing has been proven as an effective means of contact performance enhancement. However, limited work has been done to investigate the regular relationship to solve the multi-parameters problem of textures, and inertia effect and elastic deformation were seldom considered together in previous optimization work. This paper aims to quantitatively obtain the relationship between the textured depth and liquid film thickness and find the effect of deformation on the optimal textured height ratio in elastic parallel sliders.
Design/methodology/approach
Numerical models of hydrodynamic lubrication are established based on the computational fluid dynamic method. Elastic deformation is considered through fluid–structure interaction (FSI) method. Using response surface optimization method, textured parallel sliders are optimized with maximum loading capacity as the objective.
Findings
The results show that the optimal height ratios are all within the range of 0.60-0.65 when textured parallel sliders are considered as rigid. After considering the effect of elastic deformation, loading capacity drops and is reduced more obviously with a decrease in the elastic moduli. The optimal height ratios are within the range of 0.60-0.63, which shows that FSI has a considerable influence on loading capacity but has no significant influence on the optimal height ratio.
Originality/value
The present research provides a theoretical reference for engineering application of elastic textured parallel sliders.
Keywords
Acknowledgements
This work was supported by the National Natural Science Foundation of China (grant numbers 51506225 and 51706247), the Key Research and Development Program of Shandong, China (grant number 2018GHY115018), the Fundamental Research Funds for the Central Universities (grant number 18CX02129A) and the Graduate Student Innovation Project, China University of Petroleum (East China) (grant number YCX2018030).
Citation
Li, Q., Wang, Y., Zhang, S., Xu, W.-W., Wang, Z. and Wang, Z. (2019), "Optimal design of parallel sliders with square-shaped textures considering fluid-structure interaction", Industrial Lubrication and Tribology, Vol. 71 No. 4, pp. 620-627. https://doi.org/10.1108/ILT-09-2018-0366
Publisher
:Emerald Publishing Limited
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