In this study, polydopamine and silver-modified graphene oxide (Ag/PGO) were prepared using a one-step method, and the effects of Ag/PGO as a lubricating oil additive on the viscosity, thermal conductivity, and lubricating performance of lubricating oil were studied. The influence of additive lubricating oil on the temperature increase and vibration of a high-speed motorized spindle was studied through a motorized spindle experiment. The results showed that the addition of Ag/PGO nanocomposites could improve the thermophysical properties and lubricating properties of the lubricating oil. The Ag/PGO nanoparticles deposited on the friction surface formed a friction protective film, which prevented direct contact between the friction pairs and effectively reduced the heat generated through friction and micro-peak collision during bearing operation. The lubricating oil containing Ag/PGO had high thermal conductivity and a good heat dissipation effect in convection heat transfer in the bearing cavity. The deposition and repair of nanoparticles could improve the micro-morphology of the friction surface and reduce the high-frequency amplitude of the motorized spindle.
YanKWangNZhaiQ, et al. Theoretical and experimental investigation on the thermal characteristics of double-row tapered roller bearings of high speed locomotive. Int J Heat Mass Transf2015; 84: 1119–1130.
2.
ZhangZChenFZhangZ, et al. Analysis of friction-induced vibration in a propeller–shaft system with consideration of bearing–shaft friction. Proc IMechE, Part C: J Mechanical Engineering Science2014; 228(8): 1311–1328.
3.
WuCYangKChenY, et al. Investigation of friction and vibration performance of lithium complex grease containing nano-particles on rolling bearing. Tribol Int2021; 155: 106761.
4.
FetisovAKornaevATokmakovN.Friction and vibration in journal bearings operating with nanofluids: experimental results. Proc 4th Int Conf Ind Eng ICIE2018; 4: 1087–1095.
5.
SinghGFarooq WaniMWaniMM.Tribological evaluation of piston ring/cylinder liner assembly in automotive engines using GNP as a lubricant additive. Proc IMechE, Part C: J Mechanical Engineering Science2022; 236(9): 4973–4987.
6.
KoleMDeyTK.Investigation of thermal conductivity, viscosity, and electrical conductivity of graphene based nanofluids. J Appl Phys2013; 113(8): 084307.
7.
ZhangLXTengDWuYH, et al. Mechanism of graphene lubricating oil cooling effect on Si3N4-GCr15 friction pair. Heat Mass Transf2020; 56(7): 2273–2283.
8.
HuangJTanJFangH, et al. Tribological and wear performances of graphene-oil nanofluid under industrial high-speed rotation. Tribol Int2019; 135: 112–120.
9.
Keklikcioglu CakmakN. The impact of surfactants on the stability and thermal conductivity of graphene oxide de-ionized water nanofluids. J Therm Anal Calorim2020; 139(3): 1895–1902.
10.
QiaoYShengWHeC, et al. Experimental study on the effect of different surfactants on the thermophysical properties of graphene filled nanofluids. Int J Energy Res2021; 45(7): 10043–10063.
11.
ArefAHEntezamiAAErfan-NiyaH, et al. Thermophysical properties of paraffin-based electrically insulating nanofluids containing modified graphene oxide. J Mater Sci2017; 52: 2642–2660.
GuoLLiuQLiG, et al. A mussel-inspired polydopamine coating as a versatile platform for the in situ synthesis of graphene-based nanocomposites. Nanoscale2012; 4(19): 5864–5867.
14.
LuoFWuKShiJ, et al. Green reduction of graphene oxide by polydopamine to a construct flexible film: superior flame retardancy and high thermal conductivity. J Mater Chem A2017; 5(35): 18542–18550.
15.
FuLShiYWangK, et al. Biomimic modification of graphene oxide. New J Chem2015; 39(10): 8172–8178.
16.
ChenGJinBZhaoJ, et al. Efficient one-pot synthesis of mussel-inspired Cu-doped polydopamine nanoparticles with enhanced lubrication under heavy loads. Chem Eng J2021; 426: 131287.
17.
SerratoRMaruMMPadoveseLR.Effect of lubricant viscosity grade on mechanical vibration of roller bearings. Tribol Int2007; 40(8): 1270–1275.
18.
SuYTSheenYTLinMH.Signature analysis of roller bearing vibrations: lubrication effects. Proc IMechE, Part C: J Mechanical Engineering Science1992; 206(3): 193–202.
19.
WuCLiuZNiJ, et al. Improved tribological and bearing vibration performance of calcium sulfonate complex grease dispersed with MoS2 and oxide nanoparticles. Proc IMechE, Part C: J Mechanical Engineering Science2023; 237(8): 1941–1955.
20.
ZhangLYinZZhangK, et al. Study on friction properties of silver/polydopamine modified graphene oxide nanocomposites as lubricant additive. Fullerenes Nanotubes Carbon Nanostruct2023; 31: 209–223.
21.
KocaHDDoganaySTurgutA, et al. Effect of particle size on the viscosity of nanofluids: A review. Renew Sustain Energ Rev2018; 82: 1664–1674.
22.
ChenGZhaoJChenK., et al. Ultrastable lubricating properties of robust self-repairing tribofilms enabled by in situ-assembled polydopamine nanoparticles. Langmuir2020; 36(4): 852–861.
23.
BaraiDPBhanvaseBASonawaneSH.A review on graphene derivatives-based nanofluids: investigation on properties and heat transfer characteristics. Ind Eng Chem Res2020; 59(22): 10231–10277.
24.
Rodríguez-LagunaMCastro-AlvarezASledzinskaM, et al. Mechanisms behind the enhancement of thermal properties of graphene nanofluids. Nanoscale2018; 10(32): 15402–15409.
25.
YuanPZhangPLiangT, et al. Effects of functionalization on energy storage properties and thermal conductivity of graphene/n-octadecane composite phase change materials. J Mater Sci2019; 54(2): 1488–1501.
26.
BabyTTRamaprabhuS.Synthesis and nanofluid application of silver nanoparticles decorated graphene. J Mater Chem2011; 21(26): 9702–9709.
27.
BinuKGShenoyBSRaoDS, et al. A variable viscosity approach for the evaluation of load carrying capacity of oil lubricated journal bearing with TiO 2 nanoparticles as lubricant additives. Procedia Mater Sci2014; 6: 1051–1067.
28.
WangWXieGLuoJ.Superlubricity of black phosphorus as lubricant additive. ACS Appl Mater Interfaces2018; 10(49): 43203–43210.
29.
MiaSOhnoN.Prediction of pressure-viscosity coefficient of lubricating oils based on sound velocity. Lubrication Sci2009; 21(9): 343–354.
30.
NiuLCaoHHouH, et al. Experimental observations and dynamic modeling of vibration characteristics of a cylindrical roller bearing with roller defects. Mech Syst Signal Process2020; 138: 106553.
31.
SunnersjöCS.Rolling bearing vibrations—the effects of geometrical imperfections and wear. J Sound Vib1985; 98(4): 455–474.
32.
CaoHSuSJingX, et al. Vibration mechanism analysis for cylindrical roller bearings with single/multi defects and compound faults. Mech Syst Signal Process2020; 144: 106903.
33.
BehzadMBastamiARMbaD.A new model for estimating vibrations generated in the defective rolling element bearings. J Vib Acoust2011; 133(4): 041011.
34.
QiangHAnlingLYangmingZ, et al. Experimental study of tribological properties of lithium-based grease with Cu nanoparticle additive. Tribol-mater Surf2017; 11(2): 75–82.
35.
HarristaK.Rolling bearing analysis: advanced concepts of bearing technology. 5thed. NewYork: Taylor and Francis Group, 2007.
36.
ZhaoJHuangYHeY, et al. Nanolubricant additives: a review. Friction2021; 9: 891–917.
