dr. J.A. Osara (Jude)

Universitair docent
ET-MS3-STT
Horst Complex
j.a.osara@utwente.nl
+31534897642
Visitekaartje

Expertises

  • Material Science

    • Lubricating Grease
    • Characterization
    • Ball Bearing
    • Film Thickness
    • Temperature

  • Physics

    • Entropy
    • Model

  • Engineering

    • Grease

Organisaties

Publicaties

2024
On the film thickness in grease lubricated deep groove ball bearings. University of Twente. Shetty, P.https://doi.org/10.3990/1.9789036561679Vibrations and film thickness in grease-lubricated deep groove ball bearingsTribology international, 193, Article 109325 (E-pub ahead of print/First online). Shetty, P., Meijer, R. J., Osara, J. A., Pasaribu, R. & Lugt, P. M.https://doi.org/10.1016/j.triboint.2024.109325Effect of Grease Filling on the Film Thickness in Deep-Groove Ball BearingsTribology transactions, 67(1), 62-69. Shetty, P., Meijer, R. J., Osara, J. A., Pasaribu, R. & Lugt, P. M.https://doi.org/10.1080/10402004.2023.2282632On the Required Energy to Break Down the Thickener Structure of Lubricating GreasesTribology transactions, 67(1), 123-128. Meijer, R. J., Osara, J. A. & Lugt, P. M.https://doi.org/10.1080/10402004.2023.2297041Grease material properties from first principles thermodynamicsLubrication science, 36(1), 36-50. Osara, J. A., Chatra, S. & Lugt, P. M.https://doi.org/10.1002/ls.1672
2023
The lubrication mechanism behind the transition from churning to bleeding in grease lubricated bearings – Experimental characterizationTribology international, 183, Article 108375. Sathwik Chatra, K. R., Osara, J. A. & Lugt, P. M.https://doi.org/10.1016/j.triboint.2023.108375The process of churning in grease lubricated bearings: Identification and Thermo-mechanical characterization. University of Twente. Kalsanka Ramakrishna, S. C.https://doi.org/10.3990/1.9789036555081Thermo-mechanical aging during churning in grease lubricated bearings and its impact on grease lifeTribology international, 181, Article 108248. Sathwik Chatra, K. R., Osara, J. A. & Lugt, P. M.https://doi.org/10.1016/j.triboint.2023.108248On the evolution of oil-separation properties of lubricating greases under shear degradationTribology international, 179, Article 108154. Hogenberk, F., Osara, J. A., Ende, D. v. d. & Lugt, P. M.https://doi.org/10.1016/j.triboint.2022.108154
2022
Impact of grease churning on grease leakage, oil bleeding and grease rheologyTribology international, 176, Article 107926. Chatra, K. R. S., Osara, J. A. & Lugt, P. M.https://doi.org/10.1016/j.triboint.2022.107926Measuring Film Thickness in Starved Grease-Lubricated Ball Bearings: An Improved Electrical Capacitance MethodTribology transactions, 65(5), 869-879. Shetty, P., Meijer, R. J., Osara, J. A. & Lugt, P. M.https://doi.org/10.1080/10402004.2022.2091067Thermodynamic Characterization of Grease Oxidation-Thermal Stability via Pressure Differential Scanning CalorimetryTribology transactions, 65(3), 542-554. Osara, J. A., Lugt, P. M., Bryant, M. D. & Khonsari, M. M.https://doi.org/10.1080/10402004.2022.2050452
2021
Evaluating Degradation Coefficients from Existing System ModelsApplied Mechanics, 2(1), 159-173. Osara, J. A. & Bryant, M. D.https://doi.org/10.3390/applmech2010010
2020
Corrigendum to “Thermodynamics of grease degradation” [Tribol Int 137 (2019) 433–445] (Tribology International (2019) 137 (433–445), (S0301679X19302798), (10.1016/j.triboint.2019.05.020))Tribology international, 150, Article 106369. Osara, J. A. & Bryant, M. D.https://doi.org/10.1016/j.triboint.2020.106369A temperature-only system degradation analysis based on thermal entropy and the degradation-entropy generation methodologyInternational journal of heat and mass transfer, 158, Article 120051. Osara, J. A. & Bryant, M. D.https://doi.org/10.1016/j.ijheatmasstransfer.2020.120051
2019
Thermodynamics of grease degradationTribology international, 137, 433-445. Osara, J. A. & Bryant, M. D.https://doi.org/10.1016/j.triboint.2019.05.020

Onderzoeksprofielen

Adres

Bezoekadres

Universiteit Twente

Horst Complex (gebouwnr. 20)
De Horst 2
7522 LW Enschede

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