Film Shape Optimization for Two-Dimensional Rough Slider Bearings

Zhang, Guojun; Li, Jian; Tian, Zhuxin; Huang, Yu; Chen, Runchang

doi:10.1080/10402004.2015.1051194

Cited by 6 publications

(2 citation statements)

References 26 publications

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“…Jurczak et al [18] demonstrated the impact of surface topography on the performance of sliding support systems lubricated with Ellis fluid. Zhang et al [19] optimized the oil film morphology of slide bearings by taking into account the surface topography. Lin et al [20] investigated the impact of bearing surface topography on the dynamic characteristics of slider bearings lubricated with non-Newtonian fluids.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Static Performance of Hydrostatic Thrust Bearings Considering Non-Gaussian Surface Topography

Tian

2023

Lubricants

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The dynamic and static characteristics of hydrostatic thrust bearings are significantly affected by the bearing surface topography. Previous studies on hydrostatic thrust bearings have focused on Gaussian distribution models of bearing surface topography. However, based on actual measurements, the non-Gaussianity of the distribution characteristics of bearing surface topography is clear. To accurately characterize the non-Gaussian distribution of bearing surface topography, the traditional probability density function of Gaussian distribution was modified by introducing Edgeworth expansion. The non-Gaussian surface was then reflected by two parameters: kurtosis and skewness. This had an effect on the static characteristics of hydrostatic thrust bearings with both circumferential and radial surface topographies. The comparison between the Gaussian distribution results and those of the non-Gaussian model showed that errors between the two models could reach more than 10%. Therefore, it is important to take into account the non-Gaussianity of bearing surface when discussing static characteristics of hydrostatic thrust bearings considering the surface topography.

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Section: Introductionmentioning

confidence: 99%

Investigation of the Static Performance of Hydrostatic Thrust Bearings Considering Non-Gaussian Surface Topography

Tian

2023

Lubricants

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“…Some other studies also incorporated MATLAB programming with commercial finite element programs to complete the tribological analyses (Liu et al , 2013; Fu et al , 2014; Wang et al , 2014; Zhang et al , 2016). Furthermore, the MATLAB has a user-friendly interface for simple computations (Kumar et al , 2014; Krick et al , 2014) and useful built-in functions to assist tribological analyses (Nicoletti, 2013; Liu et al , 2013; Suh and Palazzolo, 2015; Khanam et al , 2016).…”

Section: Introductionmentioning

confidence: 99%

A cross-platform parallel programming model for fluid-film lubrication optimization

Wang

Chen

2018

ILT

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Purpose A cross-platform paradigm (computing model), which combines the graphical user interface of MATLAB and parallel Fortran programming, for fluid-film lubrication analysis is proposed. The purpose of this paper is to take the advantages of effective multithreaded computing of OpenMP and MATLAB’s user-friendly interface and real-time display capability. Design/methodology/approach A validation of computing performance of MATLAB and Fortran coding for solving two simple sliders by iterative solution methods is conducted. The online display of the particles’ search process is incorporated in the MATLAB coding, and the execution of the air foil bearing optimum design is conducted by using OpenMP multithreaded computing in the background. The optimization analysis is conducted by particle swarm optimization method for an air foil bearing design. Findings It is found that the MATLAB programs require prolonged execution times than those by using Fortran computing in iterative methods. The execution time of the air foil bearing optimum design is significantly minimized by using the OpenMP computing. As a result, the cross-platform paradigm can provide a useful graphical user interface. And very little code rewritting of the original numerical models is required, which is usually optimized for either serial or parallel computing. Research limitations/implications Iterative methods are commonly applied in fluid-film lubrication analyses. In this study, iterative methods are used as the solution methods, which may not be an effective way to compute in the MATLAB’s setting. Originality/value In this study, a cross-platform paradigm consisting of a standalone MATLAB and Fortran codes is proposed. The approach combines the best of the two paradigms and each coding can be modified or maintained independently for different applications.

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Shape optimization of hydrodynamic textured surfaces for enhancing load-carrying capacity based on level set method

Meng

et al. 2021

Tribology International

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Film Shape Optimization for Two-Dimensional Rough Slider Bearings

Cited by 6 publications

References 26 publications

Investigation of the Static Performance of Hydrostatic Thrust Bearings Considering Non-Gaussian Surface Topography

Investigation of the Static Performance of Hydrostatic Thrust Bearings Considering Non-Gaussian Surface Topography

A cross-platform parallel programming model for fluid-film lubrication optimization

Shape optimization of hydrodynamic textured surfaces for enhancing load-carrying capacity based on level set method

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