Results 121 to 130 of about 2,250,140 (346)

Low Friction of Graphene Oxide Aggregates in Lubricant Oil between a Steel Ball and Glass Disk under Boundary Lubrication. [PDF]

ACS Omega, 2022
Kinoshita H, Okamoto T, Hirai Y, Sugano K, Naohiro M.   +4 more
europepmc   +1 more source

Evaluation of boundary lubricants using steady-state wear and friction [PDF]

A friction and wear study was made at 20 C to establish operating limits and procedures for obtaining improved reproducibility and reliability in boundary lubrication testing. Ester base and C-other base fluids were used to lubricate a pure iron rider in
Jones, W. R., Jr., Loomis, W. R.
core   +1 more source

Multimodal Locomotion in Insect‐Inspired Microrobots: A Review of Strategies for Aerial, Surface, Aquatic, and Interfacial Motion

Advanced Robotics Research, EarlyView.
This review identifies key design considerations for insect‐inspired microrobots capable of multimodal locomotion. To draw inspiration, biological and robotic strategies for moving in air, on water surfaces, and underwater are examined, along with approaches for crossing the air–water interface.
Mija Jovchevska, Kaushik Jayaram, Nicole Xu   +2 more
wiley   +1 more source

Tribological performance and lubrication mechanism of polyacrylamide as a high-efficiency water-based lubricant additive for titanium alloys

Scientific Reports
Titanium alloys present challenges in terms of lubrication due to their difficult-to-machine nature, which necessitates the development of sustainable and environmentally friendly lubricants.
Jinzhu Tang, Shuqing Chen, Wenhui Cao, Hongmei Xie, Xin Quan, Qi Ding   +5 more
doaj   +1 more source

Analysis of Chaotic Features in Dry Gas Seal Friction State Using Acoustic Emission

Lubricants
In this study, a chaos theory-based characterization method is proposed to address the nonlinear behavior of acoustic emission (AE) signals during the startup and shutdown phases of dry gas seals. AE signals were collected through a controlled experiment
Shuai Zhang, Xuexing Ding, Jinlin Chen, Shipeng Wang, Lanxia Zhang   +4 more
doaj   +1 more source

Nucleation of Frank Dislocation during the Squeeze-Out Process in Boundary Lubrication: A Molecular Dynamics Study. [PDF]

Materials (Basel), 2022
Xu RG, Xiang Y, Zhang G, Rao Q, Leng Y.
europepmc   +1 more source

Identification of lubrication Regimes in Mechanical Seals using Acoustic Emission for Condition Monitoring [PDF]

The quality of lubrication condition between seal faces directly affects the reliability, operating life and sealing performance of mechanical seals. Thus, the identification of lubrication regimes in face seals i.e.
Ball, Andrew, Gu, Fengshou, Towsyfyan, Hossein, Wei, Nasha   +3 more
core  

A Superlubricated Magnetically Steerable Microcatheter with Integrated Optical and Fluidic Channels

Advanced Robotics Research, EarlyView.
A magnetically steerable microcatheter with integrated optical and fluidic channels is developed for multifunctional navigation in tortuous anatomical environments. A surface‐grafted hydrogel coating enables low‐friction actuation. The device demonstrates stable light and fluid delivery during magnetic manipulation, offering a compact platform for ...
Yuntian Du, Ruokun He, Luqi Li, Hesheng Wang, Zhuo‐Chen Ma, Bing Han   +5 more
wiley   +1 more source

Numerical methods and computers used in elastohydrodynamic lubrication [PDF]

Some of the methods of obtaining approximate numerical solutions to boundary value problems that arise in elastohydrodynamic lubrication are reviewed.
Hamrock, B. J., Tripp, J. H.
core   +1 more source

Free surface flows with large slopes: beyond lubrication theory

, 2006
The description of free surface flows can often be simplified to thin film (or lubrication) equations, when the slopes of the liquid-gas interface are small.
Hocking L. M., Jacco H. Snoeijer, Kistler S. F.   +2 more
core   +1 more source