Results 11 to 20 of about 655 (212)

Performance of Poly Alpha Olefin Nanolubricant

open access: yesLubricants, 2020
The viscosity and tribological behavior of nanofluids formed by dispersed nano-diamond particles within Poly-Alpha-Olefin (PAO6) lubricant is studied at different concentrations. The variation of coefficient of friction with nanoparticle concentration is
Nader Dolatabadi   +4 more
doaj   +1 more source

Lubrication State Transformation and Characteristic Analysis of Sliding Bearing under Low Rotary Speed and High Eccentric

open access: yesJixie chuandong, 2022
Taking hydrodynamic sliding bearing as the research object,models of hydrodynamic lubrication and mixed lubrication are established. The characteristic parameters such as friction force,friction coefficient,load-carrying capacity and temperature rise of ...
Hongbin Zhang   +3 more
doaj  

A Mixed Lubrication Model of Piston Rings on Cylinder Liner Contacts Considering Temperature-Dependent Shear Thinning and Elastic–Plastic Contact

open access: yesLubricants, 2023
This work develops a numerical methodology for predicting the performance of an automotive piston ring system by considering contact and lubrication mechanics.
Nolan Ryan Chu   +3 more
doaj   +1 more source

Performance decay of stern bearing based on lubrication numerical model and state parameters

open access: yesZhongguo Jianchuan Yanjiu, 2022
ObjectiveThis paper puts forward a method for monitoring and evaluating the lubrication performance of a marine stern tube bearing which combines a lubrication performance decay model and support vector machine (SVM) algorithm.
Tao ZHANG   +3 more
doaj   +1 more source

Mixed Lubrication Modeling of Multi-Lip Reciprocating Seals Based on Elastohydrodynamic Lubrication Theory

open access: yesMachines, 2022
Multi-lip reciprocating seals are extensively used in the subject of engineering equipment. However, the current research on the tribology of reciprocating seals mainly focused focuses on the numerical analysis of single-lip seals.
Donghong Cheng, Lichen Gu, Yu Sun
doaj   +1 more source

The Effect of Surface Morphology of Tapered Rolling Bearings in High-Speed Train on Grease Lubrication

open access: yesLubricants, 2020
With the extensive coverage of the rail transit system, ensuring the safe operation of rail vehicles is an important prerequisite. Insufficient lubrication will cause friction and wear of axle box bearings, which is directly related to ensured safety of ...
Heli Wang   +3 more
doaj   +1 more source

Lubrication properties of nylon mixed with lubricants.

open access: yesTRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C, 1987
Plastics are used widely as sliding parts. In order to investigate the effect of the varied lubricants mixed in the nylon rollers, experimental equipment was designed and manufactured. In the experiment on the friction of the nylon roller, a nylon roller was rotated contacting with a steel roller in the same direction.
MAEDA, Hiroshi   +2 more
openaire   +2 more sources

Numerical Wear Modeling in the Mixed and Boundary Lubrication Regime

open access: yesLubricants, 2022
The increasing use of low-viscosity lubricants in order to reduce the friction in machine elements such as rolling bearings is leading to increased operation in the mixed or boundary lubrication regime.
Andreas Winkler   +2 more
doaj   +1 more source

Visualising the lubrication condition in hydrodynamic journal bearings using impedance measurement

open access: yesFrontiers 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   +3 more
doaj   +1 more source

Lubrication State Recognition Based on Energy Characteristics of Friction Vibration with EEMD and SVM

open access: yesShock and Vibration, 2021
In order to identify different lubrication states, lubrication experiments were carried out on a Bruker UMT-3 tester. The experimental results show that the frequency band energy characteristics of friction vibration signals are different under different
Hai-jie Yu   +5 more
doaj   +1 more source

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