Corrosion Sensor for Water-Contaminated Grease

Dittes, Nicholas; Sjödahl, Mikael; Pettersson, Anders; Lang, Defeng

doi:10.1080/10402004.2020.1770389

Cited by 6 publications

(5 citation statements)

References 9 publications

(10 reference statements)

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“…However, the device did not distinguish between metals and other types of particles because the debris grains all have similar dielectric constants, and the microchannels made the monitor capability poor. To improve the failure of lubricants, Dittes et al [ 204 ] made a corrosion sensor ( Figure 27 ). The sensor consisted of a primary cell with chemically plated nickel-impregnated gold and a zinc electrode.…”

Section: Research On Bearings Lubrication Technology Of Wind Turbinementioning

confidence: 99%

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Review of Tribological Failure Analysis and Lubrication Technology Research of Wind Power Bearings

et al. 2022

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Wind power, being a recyclable and renewable resource, makes for a sizable portion of the new energy generation sector. Nonetheless, the wind energy industry is experiencing early failure of important components of wind turbines, with the majority of these issues also involving wind power bearings. Bearing dependability is directly tied to the transmission efficiency and work performance of wind turbines as one of its major components. The majority of wind turbine failures are due to bearings, and the vast majority of bearing failures are due to lubrication. The topic of improving the accuracy and life of wind power bearing motion is becoming increasingly essential as the wind power industry develops rapidly. This study examines the various constructions and types of wind turbines, as well as their bearings. We also examined the most typical causes of friction and lubrication failure. Furthermore, contemporary research on wind turbine bearings has been compiled, which mostly comprises the study and development of lubrication technology and other areas. Finally, a conclusion and outlook on current challenges, as well as future research directions, are offered.

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Section: Research On Bearings Lubrication Technology Of Wind Turbinementioning

confidence: 99%

Section: Figurementioning

confidence: 99%

Review of Tribological Failure Analysis and Lubrication Technology Research of Wind Power Bearings

et al. 2022

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“…Luo et al [20,21] found from the test that after water is mixed in the lubricate, as the water content increases, the viscosity of the oil-water two-phase fluid first increases and then decreases rapidly, reaching a maximum at a water content of about 30%. Dittes et al [22] studied the corrosivity of water contamination of lubricating oils, and the corrosion rate increased proportionally as the water content in the lubricant increased from 0.3% to 5.0%. Lu et al [23] found that the coefficient of friction increases with increasing free water content under oil lubrication conditions, causing severe wear, deformation, and oxidation.…”

Section: Introductionmentioning

confidence: 99%

Deterioration mechanism and health status prediction of hydrocarbon lubricants under high temperature and humid environment

Su,

Cao,

Jin

et al. 2024

Preprint

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In practical engineering applications, high temperatures and water ingress seriously affect the service life of hydrocarbon lubricants. In this study, the deterioration process of hydrocarbon lubricants under high temperatures and humid environments was investigated, and a new health state prediction model was proposed. Simulation of hydrocarbon lubricant Polyalpha-olefin (PAO) molecules using the ReaxFF force field to analyse the high temperature thermal oxidation process of lubricants. The rheological properties of oil-water emulsions were determined by observing the morphology of oil-water two-phase mixtures with different water contents. A multiparameter fusion viscosity prediction model was proposed using a linear model of the viscosity of aqueous fluids as affected by temperature and water content fitted with the Andrade viscosity-temperature equation to predict lubricant viscosity changes under multiple parameters. On-line validation tests were carried out on a compound planetary transmission system, and the surface topographical parameters of the transmission components were further discussed. The experimental results show that the linear correlation with the improved lubricant viscosity prediction model is 0.966, and the surface wear of transmission components is consistent with the trend of lubricant quality change. These findings provide a fundamental basis for the assessment of lubricant service life in high temperatures and humid environments.

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“…Luo et al [20,21] found from the test that after water is mixed in the lubricant, with the water content increases, the viscosity of the oil−water two−phase fluid increases first and then decreases rapidly, reaching a maximum water content of about 30%. Dittes et al [22] studied the corrosivity of water contamination of lubricating oils, and they found the corrosion rate increased proportionally as the water content in the lubricant increased from 0.3% to 5.0%. Lu et al [23] found that the coefficient of friction increases with increasing free water content under oil lubrication conditions, causing severe wear, deformation, and oxidation.…”

Section: Introductionmentioning

confidence: 99%

Deterioration Mechanism and Status Prediction of Hydrocarbon Lubricants under High Temperatures and Humid Environments

Su,

Cao,

Jin

et al. 2024

Lubricants

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In practical engineering applications, high temperatures and water ingress seriously affect the service life of hydrocarbon lubricants. In this study, the deterioration process of hydrocarbon lubricants under high temperatures and humid environments was investigated, and a new health state prediction model was proposed. Simulation of hydrocarbon lubricant Polyalpha−olefin (PAO) molecules used the ReaxFF force field to analyse the high temperature thermal oxidation process of lubricants. The rheological properties of oil−water emulsions were determined by observing the morphology of oil−water two−phase mixtures with different water contents. A multiparameter fusion viscosity prediction model was proposed using a linear model of the viscosity of aqueous fluids, as affected by temperature and water content, and was fitted with the Andrade viscosity−temperature equation to predict lubricant viscosity changes under multiple parameters. Online validation tests were carried out on a compound planetary transmission system, and the surface topographical parameters of the transmission components were further discussed. Experimental results show that the linear correlation with the improved lubricant viscosity prediction model is 0.966, and the surface wear of transmission components is consistent with the trend of lubricant quality change. These findings provide a fundamental basis for the assessment of lubricant service life in high temperatures and humid environments.

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Corrosion Sensor for Water-Contaminated Grease

Cited by 6 publications

References 9 publications

Review of Tribological Failure Analysis and Lubrication Technology Research of Wind Power Bearings

Review of Tribological Failure Analysis and Lubrication Technology Research of Wind Power Bearings

Deterioration mechanism and health status prediction of hydrocarbon lubricants under high temperature and humid environment

Deterioration Mechanism and Status Prediction of Hydrocarbon Lubricants under High Temperatures and Humid Environments

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