Results 11 to 20 of about 2,938 (191)

The effect of the electrical double layer on hydrodynamic lubrication: a non-monotonic trend with increasing zeta potential [PDF]

Beilstein Journal of Nanotechnology, 2017
In the present study, a modified Reynolds equation including the electrical double layer (EDL)-induced electroviscous effect of lubricant is established to investigate the effect of the EDL on the hydrodynamic lubrication of a 1D slider bearing.
Dalei Jing, Yunlu Pan, Xiaoming Wang
doaj   +2 more sources

Effect of load and speed on warship power rear drive system helical gear anti-scuffing properties in thermal elasto-hydrodynamic lubrication

Advances in Mechanical Engineering, 2016
The key parameters which caused the scoring failure of helical gears are operating load and speed. In this study, the simulations using geometric meshing theory were carried out to investigate the effect of load and speed of warship transmission helical ...
Yongmei Wang, Junpeng Shao, Xigui Wang, Xuezeng Zhao, Shubao Li, Lixin Cao   +5 more
doaj   +1 more source

Experimental study on the lubrication characteristics of porous journal bearings with hydrodynamic shape forming at annular surface under sine-wave vibrated conditions (Examination into the shaft whirling behavior at pivot supported condition by measuring the time history waveform on shaft with parameter of vibrated Frequency changes)

Nihon Kikai Gakkai ronbunshu, 2018
This report describes the study on the lubrication characteristics of porous journal bearings as a DC spindle motor's bearing system made with oil impregnated sintered materials having some hydrodynamic shapes. Herring Bone (I & II), Three Lobed
Shigeru OHTSUKA, Masaki YAKABE, Yasutaka HAYAMIZU, Koichi OTSUKA   +3 more
doaj   +1 more source

Experimental study on the lubrication characteristics of porous journal bearings with hydrodynamic shape forming at annular surface under sine-wave vibrated conditions (Examination into the shaft rotating behavior at the starting state by identifying the rotational modes with Frequency Spectrum Analysis of the time history waveform on shaft)

Nihon Kikai Gakkai ronbunshu, 2019
This report describes the study on the lubrication characteristics of porous journal bearings, which were made with oil impregnated sintered materials having some hydrodynamic shapes, to apply them for a DC Spindle Motor’s bearing system. Herring Bone (I
Shigeru OHTSUKA, Masaki YAKABE, Yasutaka HAYAMIZU, Koichi OTSUKA   +3 more
doaj   +1 more source

Electro-magneto-hydrodynamic lubrication

Open Physics, 2018
The topic of the presented paper aims to demonstrate a new principle of hydrodynamic lubrication in mechanical, thermal and electro-magnetic fields. Up till now, when dealing with the hydrodynamic theory lubrication, many authors of scientific papers ...
Wierzcholski Krzysztof, Miszczak Andrzej
doaj   +1 more source

Diblock Copolymer Nanoparticles Act as Nanoreactors for the Synthesis of Sterically‐Stabilized Inorganic Oxide Particles in Non‐polar Media

Angewandte Chemie, EarlyView.
Poly(lauryl methacrylate)‐poly(2‐hydroxyethyl methacrylate) (PLMA‐PHEMA) diblock copolymer nanoparticles prepared in non‐polar media serve as nanoreactors for the in situ synthesis of silica from tetraethyl orthosilicate (TEOS). A silica mass loading of 17% as judged by thermogravimetric analysis (TGA) produces a highly transparent dispersion, and ...
Priyanka Chohan, Andi Xie, Oleksandr O. Mykhaylyk, Steven P. Armes, Giles M. Prentice, David J. Atkinson, Andrew J. Smith   +6 more
wiley   +2 more sources

Influence of Lubrication Cycle Parameters on Hydrodynamic Linear Guides through Simultaneous Monitoring of Oil Film Pressure and Floating Heights

Lubricants
Hydrodynamic linear guides in machine tools offer a high load capacity and excellent damping characteristics, improving stability, precision, and vibration reduction.
Burhan Ibrar, Volker Wittstock, Joachim Regel, Martin Dix   +3 more
doaj   +1 more source

Individual Drive of Internal Combustion Engine Lubrication System Based on Switched Reluctance Motor

Energy Engineering and Control Systems, 2020
The article analyses the modern lubrication systems for internal combustion engines. Systems with mechanical drive components that contain mechanical and electronic components have been found to have a number of disadvantages.
Ihor Holovach, Lidiya Kasha, Ivan Hudzii
doaj   +1 more source

Analysis for Hydrodynamic Wedge-Platform Thrust Slider Bearing with Ultralow Surface Separation

International Journal of Rotating Machinery, 2022
For the case of ultralow surface separation, in a hydrodynamic wedge-platform thrust slider bearing, the outlet zone and a portion of the inlet zone are in boundary lubrication, while most of the inlet zone is in the multiscale lubrication contributed by
Chao Wang, Yongbin Zhang
doaj   +1 more source

Visualising the lubrication condition in hydrodynamic journal bearings using impedance measurement

Frontiers in Mechanical Engineering
IntroductionThe demand to increase reliability and reduce maintenance costs drives the search for new condition monitoring solutions of machines. Bearings are of special interest in this matter as they are main contributors to machine downtime. Therefore,
Florian Koetz, Florian Schmitt, Eckhard Kirchner, Eduardo Zancul   +3 more
doaj   +1 more source