Investigation of nanoparticle diameter influences on performance of hydrodynamic journal bearings operating with nanolubricant

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dc.authoridDal, Abdurrahim/0000-0002-7012-2148
dc.contributor.authorDal, Abdurrahim
dc.date.accessioned2025-01-06T17:43:23Z
dc.date.available2025-01-06T17:43:23Z
dc.date.issued2024
dc.description.abstractThe nanolubricant's effectiveness on the bearings' performance depends on the types of nanoparticles, volume ratio, and their size and/or diameter. Although the nanolubricant influences on the characteristics of the journal bearings are well known, cost-effective solutions for using nanolubricants, have continued to need in industrial applications. Because the nanoparticle's diameter plays a key role in the fluid with nanoparticle additives, research on its effect is important for hydrodynamic journal bearing. In this work, the nanoparticle diameter impacts on the characteristics of the hydrodynamic journal bearings are investigated with under thermal effects. At first, four hydrodynamic journal bearings have different parameters such as radial clearance and bearing length-diameter ratio are considered and designed. Then, the lubricant flow through the radial clearance is modeled with Dowson's equation. Besides, the temperature field in the journal and the lubricant are governed by the heat conduction and energy equations, respectively. The physical and thermal properties of the nanolubricant are expressed by considering nanoparticle diameter and the volume ratio. Then, an algorithm is developed to solve the mathematical models based on the finite difference method. Finally, a serial simulation is conducted under different nanoparticle diameters and operational conditions. When the nanoparticle diameter becomes small, the temperature and pressure values of the nanolubricant, load capacity, and stiffness increase.
dc.identifier.doi10.1177/13506501231224256
dc.identifier.endpage558
dc.identifier.issn1350-6501
dc.identifier.issn2041-305X
dc.identifier.issue5
dc.identifier.scopus2-s2.0-85181674233
dc.identifier.scopusqualityQ2
dc.identifier.startpage545
dc.identifier.urihttps://doi.org/10.1177/13506501231224256
dc.identifier.urihttps://hdl.handle.net/20.500.14669/2653
dc.identifier.volume238
dc.identifier.wosWOS:001139655200001
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherSage Publications Ltd
dc.relation.ispartofProceedings of The Institution of Mechanical Engineers Part J-Journal of Engineering Tribology
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241211
dc.subjectJournal bearing
dc.subjectthermo-hydrodynamic analysis
dc.subjectbearing geometrical parameters
dc.titleInvestigation of nanoparticle diameter influences on performance of hydrodynamic journal bearings operating with nanolubricant
dc.typeArticle

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