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Dynamic characteristics of compliant journal bearings considering thermal effects
KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.). COMSOL LLC, Russian Federation.
KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.). Ghent University, Belgium .
2016 (English)In: Tribology International, ISSN 0301-679X, E-ISSN 1879-2464, Vol. 94, 288-305 p.Article in journal (Refereed) Published
Abstract [en]

A numerical THD model that takes into account mechanical and thermal deformations of a compliant lining is used to investigate the influence of compliance on dynamic characteristics of a two axial groove bearing. A detailed study on the contribution of mechanical and thermal deformation components of the compliant lining to the non-dimensional bearing stiffness and damping is carried out. Thermal deformation is found to increase horizontal stiffness K<inf>yy</inf> and cross-coupled stiffness K<inf>xy</inf> and slightly reduce journal critical mass. Mechanical deformation of the compliant lining is found to decrease damping, reduce vertical and cross-coupled K<inf>xy</inf> stiffness. Radial clearance is found to increase stiffness, except its horizontal component, and decrease horizontal damping. Compliant lining is found to improve bearing stability.

Place, publisher, year, edition, pages
Elsevier, 2016. Vol. 94, 288-305 p.
Keyword [en]
Compliance, Damping, Stiffness, Thermal effects, Deformation, Dynamics, Linings, Compliant journal bearings, Cross-coupled stiffness, Dynamic characteristics, Horizontal damping, Horizontal stiffness, Mechanical deformation, Thermal deformation, Bearings (machine parts)
National Category
Mechanical Engineering
URN: urn:nbn:se:kth:diva-176225DOI: 10.1016/j.triboint.2015.08.018ISI: 000367757000034ScopusID: 2-s2.0-84942036996OAI: diva2:871552

QC 20151116

Available from: 2015-11-16 Created: 2015-11-02 Last updated: 2016-02-24Bibliographically approved

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Glavatskih, Sergei
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