Assessment of the Lubricity of Grease‐Sealing Rotary Shaft Seals Based on Grease Properties

Hahn, Susanne; Feldmeth, Simon; Bauer, Frank

doi:10.1002/ceat.202200382

Cited by 3 publications

(3 citation statements)

References 10 publications

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“…For the PUthickener group the correlation decreases to 𝑅𝑅 2 = 0.339. This decrease of the coefficient of determination can also be seen for other grease properties, as is shown in [8,9]. All correlations are shown in Figure 9.…”

Section: Transfer To the Sealing Systemsupporting

confidence: 76%

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On the prediction of the lubrication condition of grease sealing rotary shaft seals

Hahn,

Feldmeth,

Bauer

2022

21st International Sealing Conference 2022

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The so called "tear-in" tests were developed to evaluate a correlation between the tear-in of a grease dam in a tribological system and the lubricity of the grease. They were carried out with a rheometer as equivalent system and 23 greases. The grease sample was sheared in the gap between a rotating and a stationary plate with a linearly increasing shear rate. The motion of the grease within this gap was observed optically with a high-speed camera. In addition, the shear stress was measured and evaluated. The results of the tear-in tests correlate well with functional tests using a rotary shaft sealing system.

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Section: Transfer To the Sealing Systemsupporting

confidence: 76%

“…In the research project "Grease deficiency", the lubricity of 23 commercially available greases was tested [7]. Many properties of the 23 greases were analysed and correlated with each other [8,9]. The results show no direct correlation between a single grease property and the lubricity of the grease.…”

Section: Introductionmentioning

confidence: 99%

On the prediction of the lubrication condition of grease sealing rotary shaft seals

Hahn,

Feldmeth,

Bauer

2022

21st International Sealing Conference 2022

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“…In summary, selecting the appropriate grease based on the specific working conditions can effectively extend the service life of bearings and increase the overall revenue of the equipment [120]. When selecting grease types, it is important to consider not only the operating temperature, speed, and other mentioned factors, but also the bearing application of the working mechanism and application occasions.…”

Section: Selection Of Bearing Greasementioning

confidence: 99%

Review of Wind Power Bearing Wear Analysis and Intelligent Lubrication Method Research

Peng,

Zhao,

Shangguan

et al. 2023

Coatings

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With the significant penetration of wind generation, wind turbines require higher and higher lubrication performance for bearings. To improve the lubrication performance of wind power bearings, this study takes wind power bearings as the research object and comprehensively analyzes the wear forms of wind power bearings as well as intelligent lubrication methods. Firstly, the main roles and wear forms of wind turbine bearings are sorted out and analyzed. Secondly, the common lubrication problems of wind power bearings are analyzed from the bearing grease selection, lubrication mode, and lubrication status, highlighting the important influence of lubrication on bearings. Thirdly, the wind turbine bearing wisdom lubrication method research and organization, mainly including the wind power generation bearing lubrication materials, lubrication devices and monitoring methods, and other issues of research and analysis. Finally, current challenges and future development directions are summarized, which are designed to provide theoretical reference and technical support for the related research and engineering practice in the field of wind power engineering.

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Probabilistic Weibull reliability of a shaft design subjected to bending and torsion stress

Baro,

Piña-Monarrez

2024

DYNA

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The circular shaft serves as the axis of rotation for the components. It is subjected to flexion and tearing, indicating that fatigue is the mode of failure. The range of stresses resulting from the mean and alternating loads determines the occurrence of fatigue failure. The deterministic fatigue analysis, calculated using the stress average obtained from SN curves, can only represent the mean life. This is because the stress range is not a single number, and therefore it cannot provide the reliability level for the stress. The study employs the Weibull distribution to estimate loads and parameters for a probabilistic shaft design under bending and torsion. The minimum strength is assessed using corresponding stress analysis to determine the reliability index for the designed shaft.

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Assessment of the Lubricity of Grease‐Sealing Rotary Shaft Seals Based on Grease Properties

Cited by 3 publications

References 10 publications

On the prediction of the lubrication condition of grease sealing rotary shaft seals

On the prediction of the lubrication condition of grease sealing rotary shaft seals

Review of Wind Power Bearing Wear Analysis and Intelligent Lubrication Method Research

Probabilistic Weibull reliability of a shaft design subjected to bending and torsion stress

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