Experimental analysis of the hydrodynamic effect during start-up of fixed geometry thrust bearings

Henry, Y.; Bouyer, J.; Fillon, Michel

doi:10.1016/j.triboint.2017.12.021

Cited by 41 publications

(22 citation statements)

References 16 publications

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“…The overall temperature rise is significantly reduced by high density textured bearing. In another experimental study, Henry et al [117] investigated the effect of surface texturing on starting and ending the working period of parallel and tilted pad thrust bearings. The friction torque during the startup period is decreased with surface texturing on the bearing pad.…”

Section: Hydrodynamic Slider/thrust Bearing With Texturementioning

confidence: 99%

Implication of Surface Texture and Slip on Hydrodynamic Fluid Film Bearings: A Comprehensive Survey

et al. 2020

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Numerous published studies on the non-wettable surfaces with surface texture and slip conditions have been reviewed comprehensively to evaluate the performance of hydrodynamic bearings from last two decades. The recent numerical and experimental studies have been explored to observe the individual and combined influence of surface texture and slip. A variety of texture shapes and optimized slip zone profiles have also been discussed in this article. It has been observed from the literature that a suitable combination of modified slip and the conventional no-slip zone is effective in improving dynamic and static performance of hydrodynamic bearings. Many experimental studies also revealed that micro-scale textures are significantly capable of improving the tribological performance. Moreover, slip boundary condition is more beneficial at low and medium eccentricity ratios.

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Section: Hydrodynamic Slider/thrust Bearing With Texturementioning

confidence: 99%

Implication of Surface Texture and Slip on Hydrodynamic Fluid Film Bearings: A Comprehensive Survey

et al. 2020

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“…Transient contact thermal behavior of dynamic journals and bearings during initial start-up operation was investigated by Cui et al 12 Zouzoulas and Papadopoulos 13 performed thermal fluid dynamic lubrication calculations and studies on load-bearing types thrust bearings that exhibited different forms of surface treatments. Henry et al 14 used an experimental analysis method to verify the thermoelastic behavior of multiple thrust bearings with a determined geometry. Through the sequential quadratic programming (SQP) method, the optimal modification of hydrodynamic film with maximum load-carrying capacity (LCC) in designed thrust bearing was given, and the cubic optimal solution of special case of the two-dimensional stepped contour region, where r had a fixed film depth (quadrilateral modification) and a constant film thickness (radial direction), were analyzed by Fesanghary and Khonsari.…”

Section: Introductionmentioning

confidence: 99%

Transient temperature field analysis of variable viscosity RTHSB with a special structural cavity

Ruan

Wang

et al. 2020

Advances in Mechanical Engineering

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A radial thrust hydrodynamic sliding bearing (RTHSB) with special shaped cavity had been designed. Taking the instantaneous temperature rise characteristics of RTHSB as an analysis object, considering the influence of inlet lubricating oil velocity and transmission shaft speed, a dynamic simulation method of variable viscosity temperature field is proposed, and the mathematical model of instantaneous temperature rise of time-varying oil film is constructed. The correlation equation between instantaneous temperature rise and oil film variable viscosity is analyzed, the lubricating performance of a special-shaped cavity with variable thickness of the oil film considering real-time full operating conditions is revealed, and the alternating transient laws of oil film thickness with variable viscosity and its instantaneous temperature rise for no-load, heavy-load, and different rotating speeds are studied. It is obtained that the higher temperature area of profiled shaped cavity on reverse flow side extends to oil seal side with increase of rotating speed. The dynamic simulation of variable viscosity of RTHSB with different film thickness is simulated by using FLUENT software and the trend of transient film temperature field distribution of in special-shaped cavity is evaluated. The rationality of the mechanism analysis and numerical simulation results in this paper has been verified.

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“…Now, rough textured surfaces are at the center of all the interests because they significantly affect the flow of fluids. The majority of textured effects studies have been restricted to the study of thrust bearing with fixed pads geometry [2][3].…”

Section: Introductionmentioning

confidence: 99%

Effects of the dimple geometry on the isothermal performance of a hydrodynamic textured tilting-pad thrust bearing

Mostefa¹,

Souchet²,

Zebbar³

et al. 2018

IJHT

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This paper is devoted to the analysis of effects of the dimple geometry on the hydrodynamic characteristics of a tilting pad thrust bearing. In a first step a discretization of Reynolds equation has been carried out by the finite difference method. It is followed by the development and validation of a hydrodynamic model used later for the examination of the influence of different surface dimples (radial, circumferential, rectangular…) on the hydrodynamic characteristics such as maximum pressure, friction torque and power loss. This study allowed highlighting that a suitable arrangement of the dimple contact surface area and also the depth of the dimple can contribute significantly to the improvement of the hydrodynamic characteristics of the tilting-pad thrust bearing.

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Experimental analysis of the hydrodynamic effect during start-up of fixed geometry thrust bearings

Cited by 41 publications

References 16 publications

Implication of Surface Texture and Slip on Hydrodynamic Fluid Film Bearings: A Comprehensive Survey

Implication of Surface Texture and Slip on Hydrodynamic Fluid Film Bearings: A Comprehensive Survey

Transient temperature field analysis of variable viscosity RTHSB with a special structural cavity

Effects of the dimple geometry on the isothermal performance of a hydrodynamic textured tilting-pad thrust bearing

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