Results 61 to 70 of about 12,252 (219)

Effects of Soap Fiber Structure on Boundary Lubrication of Lithium Soap Greases

Tribology Online, 2011
This paper describes the influence of fiber length of lithium-soap thickener of greases on friction under boundary lubrication conditions. Ball-on-disk sliding tests were conducted with lithium soap greases with polyol ester as the base oil.
Atsushi Yokouchi, Michita Hokao, Joichi Sugimura   +2 more
doaj   +1 more source

Test Validation of the Repair to the Space Station Solar Alpha Rotary Joint (SARJ) [PDF]

The SARJ LITE (Lubrication Interval Test) test rig was built as a method to evaluate the performance of the grease repair on the Starboard SARJ of the International Space Station(ISS).
Allmon, Curtis, Loewenthal, Stu, Wilkinson, Will   +2 more
core   +1 more source

The linear boom actuator designed for the Galileo spacecraft [PDF]

, 1983
Because the linear boom actuator is to be used on a flight spacecraft, as opposed to a ground based application, there is a comprehensive set of requirements. First, of course, the actuator must be capable of positioning and holding the load.
Koch, E. F.
core   +1 more source

Effects of Carbon Nanoparticles on Triboelectro‐Induced Surface Defects

Advanced Engineering Materials, Volume 28, Issue 6, 18 March 2026.
Carbon nanoparticles added to grease modify the electrocontact behavior. The synergy of particle concentration and electric current dominates the surface damage of metals in contact. Electrical surface damage caused by current leakage is a critical challenge in high‐performance applications such as electric vehicle (EV) drivetrains and wind turbine ...
Mohsen Tajedini, Lu Fang, Jacob Bons, Mohammad Humaun Kabir, Evan Johnson, Joe Kosmoski, Hong Liang   +6 more
wiley   +1 more source

On the electric behaviour of conductive grease inside the contact zone

Friction
Conductive grease has been considered as a potential solution in addressing electric erosion issue inside motor bearings. Understanding the conductive grease performance, especially the electric and tribological behaviour is crucial for its application ...
Yuxin Zhou, Jinjie Liu, Xinming Li, He Chong, Bo Han, Qinghua Bai   +5 more
doaj   +1 more source

Evaluation of Flange Grease on Revenue Service Tracks Using Laser-Based Systems and Machine Learning

Infrastructures
This study presents a machine learning approach for estimating the presence and extent of flange-face lubrication on a rail. It offers an alternative to the current empirical and subjective methods for lubrication assessment, in which track engineers ...
Aditya Rahalkar, S. Morteza Mirzaei, Yang Chen, Carvel Holton, Mehdi Ahmadian   +4 more
doaj   +1 more source

Creep curve measurement to support wear and adhesion modelling, using a continuously variable creep twin disc machine [PDF]

, 2013
Predictive modelling of wear and adhesion at rolling-sliding contacts such as a railway rail and wheel depends on understanding the relationship between slip and shear force at the contact surface, i.e. the creep verses force curve.
Amsler, Carroll, D.I. Fletcher, Engel, Engineering Science Data Unit Item, Fletcher, Johnson, Kalker, Logston, Matsumoto, Monk-Steel, Polach, S. Lewis, Zhang   +13 more
core   +1 more source

Self‐Lubricating and Surface‐State‐Modulated p‐p Heterojunction for Robust In Situ Sensing and Deep Learning‐Enabled Condition Identification

SmartSys, Volume 2, Issue 1, March 2026.
ABSTRACT The rapid expansion of Internet of things (IoT) and cyber‐physical systems presents a formidable challenge for sustainably powering massive numbers of distributed sensors. Friction, a ubiquitous phenomenon typically viewed as a source of energy dissipation, offers a novel avenue for energy harvesting and in situ sensing.
Song Wang, Xiantao Zhang, Hongjie Zhang, Shuai Gao, Xueping Xu, Qinkai Han, Shaoze Yan   +6 more
wiley   +1 more source

Numerical Simulation of Waviness in A Circular Ehl Contact, Under Rolling/Sliding [PDF]

, 1995
Surface roughness and/or surface imperfections are well known to significantly affect the performance of concentrated contacts. Helped by improvements in computer hardware and software, related research in the field of Elasto Hydrodynamic Lubrication ...
Lubrecht, A.A., Venner, C.H.
core   +2 more sources

Research on Mechanical Aging Behavior of Grease in Rolling Bearing

Chinese Journal of Mechanical Engineering
Grease is extensively used in rolling bearings due to its inherent sealing properties. However, mechanical degradation typically occurs, resulting in a significantly shorter lifespan for the grease compared to the bearing.
Jialong Yang, Yuhao Zhang, Zongzheng Wang, Wei Pu   +3 more
doaj   +1 more source