Performance characteristics of an aerostatic journal bearing with partially blocked orifices

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dc.authoridDal, Abdurrahim/0000-0002-7012-2148
dc.authoridKaracay, Tuncay/0000-0002-6014-5610
dc.contributor.authorDal, Abdurrahim
dc.contributor.authorKaracay, Tuncay
dc.date.accessioned2025-04-09T09:20:57Z
dc.date.available2025-04-09T09:20:57Z
dc.date.issued2021
dc.description.abstractAerostatic journal bearing applications mainly focus on high-speed precision machining, so predictable and smooth functioning of the system is crucial. Air is supplied to the bearing through a number of orifices and any unevenness in the size of these orifices will affect the performance of the system. The size difference could be due to manufacturing error and/or blockage of the orifice because of foreign materials in the air system. In this study, the performance of an aerostatic bearing with a partially blocked orifice is numerically investigated. Firstly, the airflow in the bearing clearance was modeled with Reynolds equation and this equation was numerically solved with the finite difference and differential transform hybrid method to obtain the pressure distribution. Then, the force and the stiffness are calculated from the pressure distribution for different blockage cases of the orifice and different blockage ratios. The results show that the partial blockage of the orifice significantly changes the performance of the system in a positive or a negative way according to the feeding hole position, and the blockage ratio also affects performance.
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK) [112M847]; Gazi University Scientific Research Projects Unit [06/2017-06]
dc.description.sponsorshipThis study was funded by the Scientific and Technological Research Council of Turkey (TUBITAK) under Grant No. 112M847 and Gazi University Scientific Research Projects Unit under Grant No. 06/2017-06.
dc.identifier.doi10.1177/13506501211000592
dc.identifier.endpage2454
dc.identifier.issn1350-6501
dc.identifier.issn2041-305X
dc.identifier.issue11
dc.identifier.scopus2-s2.0-85115453744
dc.identifier.scopusqualityQ2
dc.identifier.startpage2440
dc.identifier.urihttps://doi.org/10.1177/13506501211000592
dc.identifier.urihttps://hdl.handle.net/20.500.14669/3466
dc.identifier.volume235
dc.identifier.wosWOS:000679741200001
dc.identifier.wosqualityQ3
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.subjectAerostatic bearings
dc.subjectorifice blockage
dc.subjectperformance of air bearings
dc.titlePerformance characteristics of an aerostatic journal bearing with partially blocked orifices
dc.typeArticle

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