Exploring integral controllers in actively-lubricated tilting-pad journal bearings

Jorge Andrés González Salazar, Ilmar Santos

Research output: Contribution to journalJournal articleResearchpeer-review


Active tilting-pad journal bearings with radial oil injection combine good stability properties of conventional tilting-pad journal bearings with the capability of improving their dynamic properties even more by control techniques. The main contribution of this work is the experimental investigation of integral controllers for feedback-controlled lubrication with the aim of: a) presetting the static journal center and consequently exploring the changes of bearing dynamic properties; b) obtaining an integral controller capable of re-positioning the static journal eccentricity for matching equilibria under conventional hydrodynamic and feedback-controlled lubrication regimes. A novel application is proposed, that tries to build non-invasive perturbation forces and uses the active fluid film forces of the bearing as a calibrated shaker.
Original languageEnglish
JournalProceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology
Issue number7
Pages (from-to)835-848
Publication statusPublished - 2015


  • Tilting-pad journal bearings
  • Feedback-controlled lubrication
  • Integral controller
  • Active lubrication
  • Bearing dynamics

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