Analysis and optimisation of grooved parallel slider bearings with cavitation

Jiang, Sen; Ji, Hua; Feng, Donglin; Li, Qian; Wu, Sunke; Chen, Zhi

doi:10.1007/s11012-020-01158-6

Cited by 10 publications

(8 citation statements)

References 25 publications

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“…Considering Reynolds equation, flow continuity condition and texture geometry, the effect of cavitation on the global pressure distribution is reflected. Based on the Fowell's analytical model, an analytical work is done by Jiang and co-workers [34], where the pressure distributions of the bearing in the three possible cases determined by whether cavitation occurs are analyzed and compared to clarify the effect of cavitation. The analytical solutions of the optimal geometric parameters in the bearing with single groove are also given.…”

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confidence: 99%

“…In the previous analytical researches [15,29,31,34,35], the film thickness is considered as a given value to simplify the analysis, but the load is often given rather than film thickness in practice. When the operating parameters change, the hydrodynamic load support and the film thickness will be changed in real application.…”

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confidence: 99%

“…In this study, the previous analytical model to study the textured surfaces with cavitation [34] is generalized and further developed to consider the variation of film thickness. Adopting a trial algorithm to overcome the difficulty of direct analysis, the time-efficient predictions of optimal geometric parameters for largest film thickness are obtained.…”

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confidence: 99%

“…Based on the analytical model from "inlet suction" mechanism, Jiang and his co-workers [34] analyzed and compared the pressure distributions of the bearing in all possible cases. It was found that cavitation limits the increase of sucked lubricant flow and cavitation zone seems to occupy the space of high pressure zone.…”

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confidence: 99%

“…Then, through mathematical operations such as algebra, integration and derivation, the expressions for the geometric parameters corresponding to the local maximum load support in the two cases can be obtained. Finally, given the operating parameters, the two maximum load support can be compared and the optimal geometric parameters can be determined.This analytical methodology are specified in Jiang et al [34] in some detail.…”

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An Analytical And Experimental Parametric Study of Texturing In Slider Bearings Under Hydrodynamic/Mixed Lubrication

Jiang¹,

Dong²,

Liu³

et al. 2021

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An analytical approach is advantageous in providing a more generic in-depth understanding of the nature of the relationships among texture parameters. Considering the corresponding variation of film thickness, the effects of operating parameters on the optimal texture geometric parameters are clarified analytically, with a trial algorithm adopted to overcome the difficulty of direct analysis. The interaction and cooperation between the parameters are highlighted. The relationship between film thickness (or load support) and friction resistance is also analyzed, and series of pin-on-disk tests are performed to assess the results from the analytical approach. Three laser-etched rectangular textures with different sizes are tested for friction coefficients, under a range of applied loads and speeds. Both analytical and experimental results show that the optimal dimple breadth and depth decrease with the increase of load, and the optimal dimple depth increases with the increase of sliding speed.

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confidence: 99%

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confidence: 99%

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confidence: 99%

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confidence: 99%

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