Modeling and Analysis of the Tribological Evaluation of Bearing Materials under the Influence of Nano Based Marine Lubricant Using D-Optimal Design

Baskar, S.; Prabaharan, G.; Arumugam, S.; Nagabhooshanam, N.

doi:10.1016/j.matpr.2018.02.122

Cited by 3 publications

(5 citation statements)

References 9 publications

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“…As illustrated in Figure ( 1), a two-step approach was employed to manufacture nanolubricating oils, with no dispersion agent or surfactant used in the process [4][5][6][7][8][9][10]13,14,17].…”

Section: Preparation Of Nano-lubricantmentioning

confidence: 99%

“…Nano-lubricants are used in internal combustion engines. Baskar et al [5] found that enough nano-lubricating oil reduced journal bearing system friction and wear. According to their ideal results, the coefficient of friction (COF) and specific wear rate was reduced utilizing a load of 100 N, a sliding speed of 2 m/s, and bronze bearing material/SN500 base oil with 0.5wt.…”

Section: Introductionmentioning

confidence: 99%

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The Effecting of Various Parameters on the Thermophysical and Rheological Properties of SiO2 Nano-lubricating Oil in Petroleum Refineries

Awad¹,

Sukkar

Jaed³

2022

Journal of Petroleum Research and Studies

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The improvement of the performance of automotive engines necessitated the use of effective lubricating oil. Experimentally explored are the thermophysical characteristics and rheological behavior of Nano-lubricating oil made by mixing SiO2 nanoparticles with stock-60. Nano-lubricant has been prepared with a two-step method using a magnetic stirrer as a first step mixing and an ultrasonic homogenizer. The rheological properties were investigated at various shear rates, temperature, and solid volume percent. This research was carried out on concentrations ranging from 0.1 % to 1.0 %. The results showed elevation in temperature, the dynamic viscosity dropped in all shear rates due to lower SiO2 NP concentrations and that all samples exhibited Newtonian behavior at all temperatures fixed. The thermal conductivity of nano-lubricating oil was tested at various temperatures ranging from 20°C to 50°C. The different solid volume percent of SiO2 NPs were in the range of 0 to 1% maximum enhancement value was achieved at higher temperature with increased volume percent of SiO2 NPs. Other important thermophysical properties of lube oil including flashpoint and pour point were also measured. The results revealed that adding SiO2 NPs to stock-60 at a solid volume percent of 1% will result in a maximum improvement of 12 % in flashpoint over the base oil, while the improvement of pour point was achieved at nano-addition of 0.75% and 1% compared with the base oil was increased from -3°C to -6°C.

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Section: Preparation Of Nano-lubricantmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The Effecting of Various Parameters on the Thermophysical and Rheological Properties of SiO2 Nano-lubricating Oil in Petroleum Refineries

Awad¹,

Sukkar

Jaed³

2022

Journal of Petroleum Research and Studies

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“…According to the surface analysis results using AFM, a combined effect of both polishing and tribo-sintering mechanisms was proposed, due to the enhancement in the average surface roughness. Prabaharan [100] investigated the tribological effect of adding different concentrations of CuO The friction coefficient was reduced by 40% when functionalized graphene nanoparticles were used in contrast with the base engine oil. Hou [76] reported a study of using the hybrid nanoparticles of Al 2 O 3 /TiO 2 for engine lubricants through 50 km of sliding distance.…”

Section: Tribological Performance Of Nanolubricantsmentioning

confidence: 99%

Section: Tribological Performance Of Nanolubricantsmentioning

confidence: 99%

Recent Advances in Preparation and Testing Methods of Engine-Based Nanolubricants: A State-of-the-Art Review

et al. 2021

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Reducing power losses in engines is considered a key parameter of their efficiency improvement. Nanotechnology, as an interface technology, is considered one of the most promising strategies for this purpose. As a consumable liquid, researchers have studied nanolubricants through the last decade as potential engine oil. Nanolubricants were shown to cause a considerable reduction in the engine frictional and thermal losses, and fuel consumption as well. Despite that, numerous drawbacks regarding the quality of the processed nanolubricants were discerned. This includes the dispersion stability of these fluids and the lack of actual engine experiments. It has been shown that the selection criteria of nanoparticles to be used as lubricant additives for internal combustion engines is considered a complex process. Many factors have to be considered to investigate and follow up with their characteristics. The selection methodology includes tribological and rheological behaviours, thermal stability, dispersion stability, as well as engine performance. Through the last decade, studies on nanolubricants related to internal combustion engines focused only on one to three of these factors, with little concern towards the other factors that would have a considerable effect on their final behaviour. In this review study, recent works concerning nanolubricants are discussed and summarized. A complete image of the designing parameters for this approach is presented, to afford an effective product as engine lubricant.

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“…Karolina Jablonka et al developed a quantitative measurements of film thickness in a ball bearing [7][8][9][10], and studies indicated that the oil film thickness plays very important roles on the load distribution. Yongfang Zhang proposed an approximate analytical method for calculating oil film forces of turbulent finite length journal bearings and analyzed the influence of the parameters on the oil film forces [11].…”

mentioning

confidence: 99%

Theoretical and Experimental Studies on the Influence of Lubricating Film on Dynamic Characteristics of Spindle Bearing

Chen

Yuan

et al. 2023

Preprint

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In this paper, an optimized bearing quasi-static model was established by coupling the influence factors of lubricating oil between ball and raceway, the interaction between cage and ball, and the fluid dynamic pressure distribution pressure of oil film between cage and guide ring with the consideration of the effects of cage and lubricating oil. Compared with Jone’s classical quasi-statics model simulation results and test results, the bearing mechanics model established in this paper is more accurate and feasible. On the basis of such model, the dynamic characteristic parameters of the oil film condition between ball and raceway and the force acting on cage, were analyzed for different working conditions. Results show that the oil film thickness of ball-raceway is more sensitive to the bearing rotating speed greater than the loads. With the increasing of the rotating speed, the normal loads between ball and cage will decrease and the force exerted by distribution pressure of fluid dynamic pressure on cage will increase. However, with the thrust load increasing, they tend to decrease gradually.

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Modeling and Analysis of the Tribological Evaluation of Bearing Materials under the Influence of Nano Based Marine Lubricant Using D-Optimal Design

Cited by 3 publications

References 9 publications

The Effecting of Various Parameters on the Thermophysical and Rheological Properties of SiO2 Nano-lubricating Oil in Petroleum Refineries

The Effecting of Various Parameters on the Thermophysical and Rheological Properties of SiO2 Nano-lubricating Oil in Petroleum Refineries

Recent Advances in Preparation and Testing Methods of Engine-Based Nanolubricants: A State-of-the-Art Review

Theoretical and Experimental Studies on the Influence of Lubricating Film on Dynamic Characteristics of Spindle Bearing

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