..., dimensionless load, and dimensionless material parameter on EHL characteristics. The numerical findings are found to be consistent with the experimental measurements of EHL film thickness pertaining to electrorheological fluids. The findings are highly encouraging, demonstrating that by appropriately modifying...

... the friction pair while discharging the working medium synchronously. However, the step structure inevitably influences the film's characteristics and has unclear effects on friction and leakage performance. Therefore, the lubrication and deformation model of the step piston, verified by comparison...

... TiAlVN coatings PVD HiPIMS wear abrasion adhesion films micro-tribology surface properties and characterization surface roughness and asperities Machining is a very important process in the aeronautical/aerospace industry and hence is very important because of its high precision [ 1...

...Huiying Wang; Hang Li; Jianliang Li; Ningxin Wei; Longlong Sun; Jiewen Huang; Jian Kong; Qiujie Wu; Yan Shi Films have been prepared with not only high hardness to guarantee excellent wear resistance but also high toughness to prevent brittle fracture at low to middle-high temperatures...

... by the Tribology Division of ASME for publication in the J ournal of T ribology . 03 03 2024 07 08 2024 07 08 2024 13 09 2024 Graphical Abstract Figure boundary lubrication films friction lubricant additives wear mechanisms Lubricant additives are a crucial...

... tribochemistry films friction lubricant additives wear wear mechanisms Graphical Abstract Figure Copyright © 2024 by ASME 2024 American Society of Mechanical Engineers 0742-4787/2024/146(11)/110801/9/ $25.00 ...

... 04 2024 Graphical Abstract Figure piston skirt solid lubricant coatings ZDDP friction and wear tribofilm films lubricant additives solid lubricants wear mechanism The marine diesel engine, as the primary power system for the shipping industry, is facing...

... was adopted to determine the film distribution of the oil reservoir and the layer thickness of the oil ridges on the free surface. It clearly depicts the changes in the oil reservoir and reveals the mechanism of the oil reflow surrounding the contact region under various driving actions. The results may give...

..., approximately 2.0 µm thick, were formed through controlled anodization and annealing, composed of Ti and Nb oxides. The compact oxide film at the nanotube/substrate interface provided corrosion resistance, lubricating properties in worn tracks, and improved wear resistance. The nanotubes exhibited a lower...

... piezoelectric servo valve hydraulic pipeline fluid force control characteristics films fluid film lubrication National Natural Science Foundation of China 10.13039/501100001809 51975337 52005277 Natural Science Foundation of Shandong Province 10.13039/501100007129 ZR2019MEE064...

...Yiming Han; Petr Sperka; Jing Wang; Ivan Krupka; Martin Hartl; Weimin Li; Xiaobo Wang; Weimin Liu The influence of the grease-water two-phase emulsion on the bearing tracks on the film formation has been studied by carrying out optical interferometry experiments on a ball disk test rig to observe...

... between the lubricating angle and sliding angle is made clear, and the lubricating angle is recommended to determine the lubricating weak point. The kinematic-geometric coefficient of oil film thickness is proposed to evaluate preliminarily the lubricating characteristics of the gear drive. This theory...

... years, many chemicals were screened for evaluating the bonding strength on silver surfaces. Finally, a mono-octadecanethiol (ODT) film was solidly bonded with silver surfaces in the laboratory utilizing an ultrasonic bath. To apply this technology for industry, the process must be tested in a real...

... on preferential load support by fillers. Recent studies found that tribochemical polarization of PTFE could trigger the formation of highly protective transfer films, thus resulting in exceptionally low wear-rates (k ∼ 10 −7 mm 3 /Nm) in certain composites. Although tribochemical interactions were believed...

..., and machining roughness. The distribution of the center film thickness of the LSR gear along the meshing line was predicted through an example the result of which was compared with a typical line contact EHL formula to verify the model. In addition, the difference was investigated in film thickness distribution...

... . 20 06 2021 08 09 2021 08 09 2021 08 02 2022 hydrostatic lead screw lubrication misalignment transmission performance films fluid film lubrication hydrodynamic lubrication hydrostatic lubrication National Natural Science Foundation of China 10.13039...

... shows that, with consideration of texture effect, the friction torque of the bearing is reduced, there exists an optimal texture parameter for a given film thickness, under which the bearing has the maximum load-carrying capacity, no obvious change rule is found for the volume flowrate...

... coatings contact area dry friction films hardness sliding surface layers surface properties and characterization surfaces tribological systems wear Coatings have been employed in systems subject to sliding contact with good results [ 1 ], especially when a high hardness is required...

..., this means thinning lubricating films between the meshing gears and ultimately a breakdown of the film. If sufficient cooling is achieved by excessive use of cooling oil, additional losses and a penalty on the efficiency gained by the geared turbofan design are inevitable. The design challenge above...

...-varying load force and dynamic coefficients of the hybrid guideway in one reciprocation are calculated. Afterward, in Sec. 4 , the load-guideway system on the normal direction is simplified as a single-degree-of-freedom (DOF) linear time-varying (LTV) system. The system's film thickness and normal...