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

Tu, Zhirong; Meng, Xiangkai; Yi, Ma; Peng, Xudong

doi:10.1016/j.triboint.2021.107136

Cited by 20 publications

(5 citation statements)

References 29 publications

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“…The roles of surface textures in improving the performance behaviours (reducing the friction and increasing minimum film thickness) of hydrodynamic bearings and other tribo-contacts are being widely explored and practised [12][13][14][15][16][17][18]. Investigations have been done by researchers [16] to find the optimal geometrical shapes and depths of surface textures with a view to achieving lower friction, higher load-carrying capacity, and lesser rise in temperature. It is also revealed that texture depth has a strong influence on the bearing performance [17][18][19].…”

Section: Researchmentioning

confidence: 99%

Influence of Variable Depth Surface Texture on the Performance Behaviours of Sector Shape Pad Thrust Bearing

Aggarwal

2024

Tribol. Ind.

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Performance behaviours of oil-lubricated sector shape pad thrust bearings incorporating the variable depth’s pockets/textures have been presented. The variable depth texture comprises of combination of grooves and pockets. Fixed depth pocket, variable depth pocket (depth of the pocket reducing towards the exit) and combination of fixed and variable depth pocket with the fixed and variable depth grooves have been considered in the present investigation. With the aim to improve the performance parameters of fixed pad thrust bearing, the effect of texture parameters such as pocket/groove depth, the circumferential extent of texture and different combinations of variable depth’s pocket and grooves have been investigated. Substantial improvement in the performance parameters (minimum film thickness and coefficient of friction) has been achieved in the presence of proposed textures having variable depths of micro-geometries.

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Section: Researchmentioning

confidence: 99%

Influence of Variable Depth Surface Texture on the Performance Behaviours of Sector Shape Pad Thrust Bearing

Aggarwal

2024

Tribol. Ind.

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“…With the improvement of high-speed and heavy-duty GTS performance indicators, the dynamic responses of GTS have been extremely valued in the preliminary design and verification and optimization stages of MGPs [20][21][22]. The transient contact characteristics of the MGP interfaces are one of the core related influencing indexes that restrict the GTS dynamic response.…”

Section: Introductionmentioning

confidence: 99%

Study on Anti-Scuffing Load-Bearing Thermoelastic Lubricating Properties of Meshing Gears With Contact Interface Micro-Texture Morphology

Ruan

Wang

et al. 2022

Journal of Tribology

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In the process of gear meshing, it is an inevitable trend to encounter failure cases such as contact friction thermal behavior and interface thermoelastic scuffing wear. As one of the core influencing factors, the gear meshing contact interface micro-texture (CIMT) significantly restricts the gear transmission system (GTS) dynamic characteristics. This subject intends to the contact characteristic model and interface friction dynamics coupling model of meshing gear pair with different CIMT. Considering the influence of gear meshing CIMT on distribution type of hydrodynamic lubricating oil film, contact viscous damping and frictional thermal load, the aforementioned models have involved time-varying meshing stiffness (TVMS) and static transmission error (STE). Based on the proposed models, an example verification of meshed gear pair (MGP) is analyzed to reveal the influence of CIMT on the dynamic characteristics of GTS under a variety of micro-texture configurations and input branch power and rated speed/shaft torque conditions. Numerical simulation results indicate that the influence of CIMT on gear dynamic response (including meshing interface frictional thermal load, malicious damping and impact vibration in the off-line direction of the action) is extremely restricted by the transient contact regularity of the meshing gear surface. Meshing gears dynamic characteristics (especially vibration and noise) can be obviously and effectively adjusted by setting a regular MGP with CIMT instead of random gear surfaces.

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“…Wang, Z.Q., Zhirong, Tu., Segu, D.Z. and Zhan et al analyzed a variety of different texture shapes and found that different texture shapes have different effects on the oil film load-bearing capacity and can significantly improve the tribological performance of the friction sub (Zhaoqiang, 2014; Zhirong et al , 2021; Segu and Hwang, 2016; Zhan et al , 2020). H. Li et al performed a texture treatment on a piston-roller friction pair and found that the texture angle had a large effect on the tribological properties of the treated specimens (Li et al , 2022).…”

Section: Introductionmentioning

confidence: 99%

Influence of surface texture parameters of screw pump rotor on tribological properties of its friction pairs

Wang

Huang

et al. 2022

ILT

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Purpose This study aims to solve the premature failure of the rubber stator due to wear, reduce the frictional resistance moment of the screw pump to solve the problem of a model of Daqing oilfield screw pump oil recovery system shutdown after the difficult start. Design/methodology/approach For the first time, the rotor surface of a screw pump was treated with dot-matrix texture to study the effect of dot matrix texture on the tribological performance of the stator-rotor friction subsets of screw pump. Reciprocating friction tests with different texture morphologies (S-shape, double tongue) and angular parameters (0°, 45° and 90°) were conducted at 10% of the texture area and pump silicone grease. Findings When point texture was added to the surface of the rotor sample, the friction coefficient and wear quantity of the sample were lower than those of the surface without texture treatment, and the double tongue 0° combination showed the best tribological properties. At this time, the average coefficient of friction and wear is reduced by 22.8% and 62%, 28.6% and 64.8%. Originality/value The introduction of texture can effectively improve the tribological performance of progressive screw pumps, and this paper provides important theoretical and experimental support for the design of progressive screw pumps in practical applications.

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

Cited by 20 publications

References 29 publications

Influence of Variable Depth Surface Texture on the Performance Behaviours of Sector Shape Pad Thrust Bearing

Influence of Variable Depth Surface Texture on the Performance Behaviours of Sector Shape Pad Thrust Bearing

Study on Anti-Scuffing Load-Bearing Thermoelastic Lubricating Properties of Meshing Gears With Contact Interface Micro-Texture Morphology

Influence of surface texture parameters of screw pump rotor on tribological properties of its friction pairs

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