Results 21 to 30 of about 6,143 (262)

Research of fault diagnosis of lubricating oil in coal mining equipment

open access: yesGong-kuang zidonghua, 2014
In view of problems that traditional lubricating oil analysis method exists long test and analysis period and high cost, and cannot reflect lubricating oil state and running state of coal mining equipment systematically, a multi-parameter fusion ...
WANG Shouyi   +3 more
doaj   +1 more source

An Optimal Lubrication Oil Replacement Method Based on Selected Oil Field Data

open access: yesIEEE Access, 2019
The regular replacement of lubricating oil plays a key role in improving machine reliability and reducing unexpected failures of an oil lubricated system. This paper proposes a condition-based maintenance problem with selected oil field data to determine
Shufa Yan   +3 more
doaj   +1 more source

Research on Splash Lubrication Characteristics of a Spiral Bevel Gearbox Based on the MPS Method

open access: yesLubricants, 2023
In order to accurately and efficiently analyze the distribution law and motion status of lubricating oil in the spiral bevel gearbox of the electric multiple unit (EMU), a high-fidelity 3D CFD model of the spiral bevel gearbox of the EMU was established ...
Longjiang Shen   +4 more
doaj   +1 more source

Premature Degradation of Lubricating Oil during the Service Life of the Positive-Ignition Engine

open access: yesTribology Online, 2021
The main purpose of this article is to draw attention to the possibility of uncontrolled degradation of lubricating oil during its routine operation. Such degradation can pose a serious threat to engine operation and can even cause its permanent damage ...
Zbigniew Stępień
doaj   +1 more source

Parametric Optimization of Re-refining of Waste Lubricating Oil Using Bio-flocculant via Taguchi Approach

open access: yesChemical Engineering Transactions, 2023
Over the past few decades, recycling used lubricants have drawn much attention as a cleaner technique. The current study focuses on the fabrication and application of bio flocculant (sodium alginate) from brown algae (Sargassum Muticum) for the refining ...
Sayantan Sarkar   +3 more
doaj   +1 more source

Determinação de metais em óleos lubrificantes, provenientes de motores de ônibus urbano, utilizando a FAAS

open access: yesQuímica Nova, 2010
This work proposed a procedure to examine ashes produced in burning lubricating oils used in public transportation, in Teresina PI. Sulphanilic acid was added to the oil samples, which were burned at 550 °C for three hours and 650 °C for two hours.
Eva Lúcia Cardoso Silveira   +4 more
doaj   +1 more source

Eco-friendly utilization of chitosan from shrimp shells for used lubricating oil cleaning

open access: yesResults in Surfaces and Interfaces
A study on using chitosan as a cleaning agent for used lubricant oil has been successfully conducted. Chitosan, a derivative of chitin derived from abundant crustacean shell waste, has notable properties that make it suitable for applications in various ...
Muhammadin Hamid   +7 more
doaj   +1 more source

Superlubricity and Corrosion Inhibition Properties of Solvate Ionic Liquids in Hybrid Carbon Fiber Reinforced Plastic–Steel Interfaces

open access: yesAdvanced Engineering Materials, EarlyView.
Solvate ionic liquids lubrication reduced the coefficient of friction by ∼60% compared to dry sliding, reaching steady‐state values as low as 0.04–0.05. Corrosion weight‐loss measurements in 1 M HCl further demonstrated significant inhibition behavior, with only 100 ppm of [Li(G3)][TFSI] (∼68.5 μL/L) reducing corrosion‐product weight loss by 63 ...
Sameh Dabees   +6 more
wiley   +1 more source

Topology and Material Optimization in Ultra‐Soft Magneto‐Active Structures: Making Advantage of Residual Anisotropies

open access: yesAdvanced Materials, EarlyView.
Residual magnetization induces pronounced mechanical anisotropy in ultra‐soft magnetorheological elastomers, shaping deformation and actuation even without external magnetic fields. This study introduces a computational‐experimental framework integrating magneto‐mechanical coupling into topology optimization for designing soft magnetic actuators with ...
Carlos Perez‐Garcia   +3 more
wiley   +1 more source

Refining and Reuse of Waste Lube Oil in SI Engines: A Novel Approach for a Sustainable Environment

open access: yesEnergies, 2021
The protection of the environment and pollution control are issues of paramount importance. Researchers today are engrossed in mitigating the harmful impacts of petroleum waste on the environment.
Muhammad Usman   +8 more
doaj   +1 more source

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