This research proposes a transient mixed elastohydrodynamic model considering turbulence and bush wear, as well as the concept of contact work, to study the transient tribo-dynamic characteristics of water-lubricated bearings. The effects of turbulence, wear depth, and wear deviation angle on transient tribo-dynamic characteristics of water-lubricated bearings are investigated. The findings show that turbulence significantly affects the dynamics of stable conditions and enhances the hydrodynamic effect, but little affects the frictional contact behavior. An appropriate wear depth favors improving the tribo-dynamic characteristics of the water-lubricated bearings, but it deteriorates as the wear depth continuously increases. Negative deviation angles are better for minimizing contact work and enhancing rotor stability. The lubrication and dynamic properties of water-lubricated bearings can be enhanced through a rational approach to wear morphology design. This research is important for the optimal design and diagnosis of water-lubricated bearings wear failures.
XieZJiaoJYangK, et al.A state-of-art review on the water-lubricated bearing. Tribol Int2023; 180: 108276.
2.
ZhangYWangWWeiD, et al.Dynamic stability of unbalance-induced vibration in a turbocharger rotor - bearing system with the nonlinear effect of thermal turbulent lubricating fluid film. J Sound Vib2022; 528: 116909.
3.
QiaoJZhouGPuW, et al.Coupling analysis of turbulent and mixed lubrication of water-lubricated rubber bearings. Tribol Int2022; 172: 107644.
4.
ZhangZOuyangWLiangX, et al.Review of the evolution and prevention of friction, wear, and noise for water-lubricated bearings used in ships. Friction 2024; 12: 1–38.
5.
XieZYangKJiaoJ, et al.Transient nonlinear dynamics of the rotor system supported by low viscosity lubricated bearing. Chaos2022; 32: 123111.
6.
WeiCLiaoGWangW, et al.Transient tribo-dynamic performance of journal bearings considering wear behavior during start-up. Proc Inst Mech Eng Part J-J Eng Tribol2023; 237: 1809–1825.
7.
XieZZhuW. Theoretical and experimental exploration on the micro asperity contact load ratios and lubrication regimes transition for water-lubricated stern tube bearing. Tribol Int2021; 164: 107105.
8.
XieZLiuH. Experimental research on the interface lubrication regimes transition of water lubricated bearing. Mech Syst Signal Process2020; 136: 106522.
9.
LiuGLiM. Experimental study on the lubrication characteristics of water-lubricated rubber bearings at high rotating speeds. Tribol Int2021; 157: 106868.
10.
YangMLuHZhangX, et al.Mixed lubrication performances of misaligned stern bearing considering turbulence and elastic deformation. Ind Lubr Tribol2023; 75: 645–653.
11.
LvFJiaoCTaN, et al.Mixed-lubrication analysis of misaligned bearing considering turbulence. Tribol Int2018; 119: 19–26.
12.
LiWShiWJiangX, et al.Research on the liquid film force of water lubricated bearing in desalination multistage pumps and its coupled dynamics with rotor. J Coast Res2015; 73: 453–458.
13.
ShiYFLiMZhuGH, et al.Dynamics of a rotor system coupled with water-lubricated rubber bearings. Proc Inst Mech Eng C J Mech Eng Sci2018; 232: 4263–4277.
14.
HeTXieZTaoX, et al.Analysis of the tribological and dynamic performance of the self-adapting water-lubricated stern bearing. Lubricants2022; 10: 245.
15.
CaiJXiangGLiS, et al.Mathematical modeling for nonlinear dynamic mixed friction behaviors of novel coupled bearing lubricated with low-viscosity fluid. Phys Fluids (1994)2022; 34: 093612.
16.
ChaMKuznetsovEGlavatskihS. A comparative linear and nonlinear dynamic analysis of compliant cylindrical journal bearings. Mech Mach Theory2013; 64: 80–92.
17.
CuiSGuLWangL, et al.Numerical analysis on the dynamic contact behavior of hydrodynamic journal bearings during start-up. Tribol Int2018; 121: 260–268.
18.
CuiSGuLFillonM, et al.The effects of surface roughness on the transient characteristics of hydrodynamic cylindrical bearings during startup. Tribol Int2018; 128: 421–428.
19.
XiangGHanY. Study on the tribo-dynamic performances of water-lubricated microgroove bearings during start-up. Tribol Int2020; 151: 106395.
20.
XiangGWangCWangY, et al.Dynamic mixed lubrication investigation of water-lubricated bearing with unbalanced rotor during start-up. Tribol Trans2021; 64: 764–776.
21.
XiangGHanYHeT, et al.Transient tribo-dynamic model for journal bearings during start-up considering 3d thermal characteristic. Tribol Int 2020; 144: 106123.
22.
LvFShangguanYZouD, et al.Transient mixed-lubrication analysis of low-viscosity lubricated bearings under impact load with consideration of turbulence. Phys Fluids (1994)2022; 34: 033108.
23.
LiangPLiXGuoF, et al.Influence of sea wave shock on transient start-up performance of water-lubricated bearing. Tribol Int2022; 167: 107332.
24.
DufraneKFKannelJWMccloskeyTH. Wear of steam turbine journal bearings at low operating speeds. Journal of Lubrication Technology-Transactions of the Asme1983; 3: 313–317.
25.
JangJYKhonsariMM. On the wear of dynamically loaded engine bearings with provision for misalignment and surface roughness. Tribol Int2020; 141: 105919.
26.
LiuGLiM. Lubrication characteristics of water-lubricated rubber bearings with partial wear. J Fluids Eng2020; 142: 021209.
27.
XiangGHanYWangJ, et al.Coupling transient mixed lubrication and wear for journal bearing modeling. Tribol Int2019; 138: 1–15.
28.
XiangGHanYHeT, et al.Wear and fluid-solid-thermal transient coupled model for journal bearings. Appl Math Model2020; 85: 19–45.
29.
ChunSMKhonsariMM. Wear simulation for the journal bearings operating under aligned shaft and steady load during start-up and coast-down conditions. Tribol Int2016; 97: 440–466.
30.
PatirNChengHS. Application of average flow model to lubrication between rough sliding surfaces. Journal of Lubrication Technology-Transactions of the Asme1979; 101: 220–230.
31.
WuCWZhengLQ. An average reynolds-equation for partial film lubrication with a contact factor. J Tribol1989; 111: 188–191.
WangQShiFHLeeSC. A mixed-lubrication study of journal bearing conformal contacts. J Tribol1997; 119: 456–461.
34.
HashimotoHWadaSNojimaK. Performance characteristics of worn journal bearings in both laminar and turbulent regimes. Part i: steady-state characteristics. ASLE Trans1986; 29: 565–571.
35.
BouyerJFillonMPierre-DanosI. Influence of wear on the behavior of a two-lobe hydrodynamic journal bearing subjected to numerous startups and stops. J Tribol2007; 129: 205–208.
36.
MachadoTHCavalcaKL. Investigation on an experimental approach to evaluate a wear model for hydrodynamic cylindrical bearings. Appl Math Model2016; 40: 9546–9564.
37.
GreenwoodJATrippJH. The contact of two nominally flat rough surfaces. Proc Inst Mech Eng Part J-J Eng Tribol 1970; 185: 625–634.
38.
ArchardJF. Contact and rubbing of flat surfaces. J Appl Phys1953; 24: 981–988.
39.
VincentBMaspeyrotPFreneJ. Cavitation in dynamically loaded journal bearings using mobility method. Wear1996; 193: 155–162.
40.
VincentBMaspeyrotPFreneJ. Cavitation in noncircular journal bearings. Wear1997; 207: 122–127.
41.
MokhtarMOAHowarthRBDaviesPB. The behavior of plain hydrodynamic journal bearings during starting and stopping. ASLE Trans1977; 20: 183–190.
42.
MachadoTHCavalcaKL. Modeling of hydrodynamic bearing wear in rotor - bearing systems. Mech Res Commun2015; 69: 15–23.
