1-20 of 46
Keywords: films
Close
Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Tribol. August 2024, 146(8): 081401.
Paper No: TRIB-23-1401
Published Online: April 16, 2024
... 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...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Tribol. July 2024, 146(7): 074102.
Paper No: TRIB-23-1420
Published Online: March 25, 2024
... 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...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Tribol. May 2024, 146(5): 051702.
Paper No: TRIB-23-1230
Published Online: January 22, 2024
..., 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...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Tribol. January 2024, 146(1): 014601.
Paper No: TRIB-22-1101
Published Online: October 5, 2023
... piezoelectric servo valve hydraulic pipeline fluid force control characteristics films fluid film lubrication Hydraulic servo valves can provide continuous flow change according to the input signal by using a sliding valve and controlling the valve through the feedback signal generated by internal...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Tribol. July 2023, 145(7): 074101.
Paper No: TRIB-22-1390
Published Online: April 25, 2023
...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...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Tribol. November 2022, 144(11): 111602.
Paper No: TRIB-21-1572
Published Online: June 23, 2022
... 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...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Tribol. November 2022, 144(11): 111202.
Paper No: TRIB-22-1079
Published Online: June 23, 2022
... 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...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Tribol. September 2022, 144(9): 091701.
Paper No: TRIB-21-1438
Published Online: March 7, 2022
... 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...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Tribol. July 2022, 144(7): 071604.
Paper No: TRIB-21-1329
Published Online: February 8, 2022
..., 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...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Tribol. July 2022, 144(7): 071202.
Paper No: TRIB-21-1292
Published Online: February 8, 2022
... . 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...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Tribol. April 2022, 144(4): 041803.
Paper No: TRIB-21-1142
Published Online: July 16, 2021
... 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...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Tribol. September 2021, 143(9): 091201.
Paper No: TRIB-19-1478
Published Online: January 8, 2021
..., 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...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Tribol. June 2021, 143(6): 061803.
Paper No: TRIB-20-1305
Published Online: October 27, 2020
...-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...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Tribol. January 2021, 143(1): 011704.
Paper No: TRIB-20-1015
Published Online: July 28, 2020
...Zhaoli Liu; Hang Li; Jianliang Li; Jiewen Huang; Jian Kong; Dangsheng Xiong In this study, the Mo-alloyed HfN films were prepared by DC-magnetron sputtering and studied their tribological properties at 25–600 °C under dry friction conditions. The relationship between H/E value and tribological...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Tribol. January 2021, 143(1): 011705.
Paper No: TRIB-20-1179
Published Online: July 28, 2020
... films friction hardness lubricant additives lubricants surface layers surface properties and characterization surface treatments tribological systems wear Hydraulic systems are hindered by inefficiencies of up to 15% from components such as hydraulic motors and pumps [ 1 ]. Seizure...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Tribol. December 2020, 142(12): 122101.
Paper No: TRIB-20-1040
Published Online: June 19, 2020
...Sudesh Singh; Xinchun Chen; Chenhui Zhang; Rakesh Kumar Gautam; Rajnesh Tyagi; Jianbin Luo To explore the potential of directly grown multi-layer graphene as an agent in reducing friction and wear of steel on steel tribo-pair, multi-layer graphene films were synthesized on GCr15 steel in a low...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Tribol. February 2020, 142(2): 021801.
Paper No: TRIB-19-1070
Published Online: November 16, 2019
...Michael Branagan; Neal Morgan; Christopher Goyne; Roger Fittro; Robert Rockwell; Minhui He To compensate for an extremely heavy journal, jacking pockets can be added to the surface of pads in fluid film bearings. Jacking pockets can range in size and shape and will have an influence...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Tribol. December 2019, 141(12): 121701.
Paper No: TRIB-19-1186
Published Online: September 11, 2019
... simulation software. Figure 2( a ) shows that the simulation model including porous pads as porous media and film as fluid is symmetric with respect to axial mid-plane. Fig. 2 ( a ) Symmetry model in axial direction of the porous pads bearing without restrictor and main boundary conditions and ( b...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Tribol. November 2018, 140(6): 061705.
Paper No: TRIB-17-1096
Published Online: June 13, 2018
...Jianzhong Cui; Jun Liu; Fangwei Xie; Cuntang Wang; Pengliang Hou The object of this work is to investigate the effect of the change of film pressure resulting from axial squeeze-film motion between driving and driven disks on the performance of hydroviscous drive (HVD). A simplified mathematical...