This work aims to study the effect of semi-ellipsoid texture on the bearing load capacity and maximum oil film temperature of tilting pad journal bearings. It has been shown that surface texture can improve the steady-state performance of bearings, but there are few studies on tilting pad journal bearings. A thermal elastohydrodynamic model of tilting pad journal bearings have been developed to support the analysis and solved by the finite difference method. The calculation results of the model are in good agreement with the simulation results of MADYN 2000 software, which proves the validity of the model. The effects of texture distribution, depth, radius, and density on the characteristics of tilting pad journal bearings were studied and compared with those of untextured tilting pad journal bearings. The results show that texture can significantly enhance or weaken the steady-state characteristics of tilting pad journal bearings, which is related to the texture parameters. This work provides a reference for the design of tilting pad journal bearings.
HeZPZhangCLiJQ, et al.Numerical analysis and optimization of rectangular texture for gas foil thrust bearing. P I Mech Eng J-J Eng2021; 235: 1599–1613.
Tala-IghilNFillonM. A numerical investigation of both thermal and texturing surface effects on the journal bearings static characteristics. Tribol Int2015; 90: 228–239.
4.
GropperDWangLHarveyTJ. Hydrodynamic lubrication of textured surfaces: a review of modeling techniques and key findings. Tribol Int2016; 94: 509–529.
5.
WeiBJiaoYWuX. Numerical calculation of fluid film force on journal bearings based on a biconjugate gradient-stabilized algorithm. J Tribol2022; 144: 5–11.
6.
TangDXYinLXiaoB, et al.Numerical analysis on mixed lubrication performance of journal-thrust coupled microgroove bearings with different bottom shapes. J Cent South Univ2022; 29: 1197–1212.
7.
SinghNAwasthiRK. Influence of texture geometries on the performance parameters of hydrodynamic journal bearing. P I Mech Eng J-J Eng2021; 235: 2056–2072.
8.
XiangGHanYF. Study on the tribo-dynamic performances of water-lubricated microgroove bearings during start-up. Tribol Int2020; 151: 106395.
9.
SharmaSJamwalGAwasthiRK. Dynamic and stability performance improvement of the hydrodynamic bearing by using triangular-shaped textures. P I Mech Eng J-J Eng2020; 234: 1436–1451.
10.
SharmaSJamwalGAwasthiRK. Numerical study on steady state performance enhancement of partial textured hydrodynamic journal bearing. Ind Lubr Tribol2019; 71: 1055–1063.
11.
ZhangXYLiuCPZhaoB. An optimization research on groove textures of a journal bearing using particle swarm optimization algorithm. Mech Ind2021; 22: 3–11.
12.
ChenDJZhaoYZhaCQ, et al.Performance evaluation of different types of micro-textured hydrostatic spindles under the main influencing factors. P I Mech Eng J-J Eng2021; 235: 2169–2183.
13.
GropperDHarveyTJWangL. Numerical analysis and optimization of surface textures for a tilting pad thrust bearing. Tribol Int2018; 124: 134–144.
14.
GropperDHarveyTJWangL. A numerical model for design and optimization of surface textures for tilting pad thrust bearings. Tribol Int2018; 119: 190–207.
15.
YamadaHTauraHKanekoS. Numerical and experimental analyses of the dynamic characteristics of journal bearings with square dimples. J Tribol-T ASME2018; 140: 1–13.
16.
YamadaHTauraHKanekoS. Static characteristics of journal bearings with square dimples. J Tribol-T Asme2017; 139: 1–11.
17.
SharmaNKangoSSharmaRK. A diabatic analysis of microtextured porous journal bearings functioned with power law fluid model. P I Mech Eng J-J Eng2019; 233: 1541–1553.
18.
RodriguesGWBittencourtML. Surface virtual texturing of the journal bearings of a three-cylinder ethanol engine. Ind Lubr Tribol2020; 72: 1059–1073.
19.
JinJChenXCFuYY,et al.Optimal design of the slip-texture on a journal-bearing surface. Ind Lubr Tribol2021; 73: 230–237.
20.
TangHSRenYXiangJW,et al.Evaluation and optimization of axial piston pump textured slipper bearings with spherical dimples based on hybrid genetic algorithm. P I Mech Eng J-J Eng2021; 235: 1719–1741.
21.
XiaoCATangHS. Elastohydrodynamic lubrication characteristics of surface-textured slipper bearing in an axial piston pump. J Braz Soc Mech Sci2020; 42: 3–18.
22.
ManserBBelaidiIKhelladiS, et al.Computational investigation on the performance of hydrodynamic micro-textured journal bearing lubricated with micropolar fluid using mass-conserving numerical approach. P I Mech Eng J-J Eng2020; 234: 1310–1331.
23.
MateleSPandeyKN. Effect of surface texturing on the dynamic characteristics of hydrodynamic journal bearing comprising concepts of green tribology. P I Mech Eng J-J Eng2018; 232: 1365–1376.
24.
MengFMZhangYFSuLL, et al.Dynamic characteristics of compound textured journal bearing. P I Mech Eng J-J Eng2021; 235: 1312–1334.
WilkesJCChildsDW. Improving tilting pad journal bearing predictions-part I: model development and impact of rotor excited versus bearing excited impedance coefficients. J Eng Gas Turb Power2013; 135: 4–14.
27.
PokornyJ. An efficient method for establishing the static equilibrium position of the hydrodynamic tilting-pad journal bearings. Tribol Int2021; 153: 106641.
