Trends in Controllable Oil Film Bearings

Ilmar Santos (Invited author)

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review


This work gives an overview about the theoretical and experimental achievements of mechatronics applied to oil film bearings, with the aim of: controlling the lateral vibration of flexible rotating shafts; modifying bearing dynamic characteristics, as stiffness and damping properties; increasing the rotational speed ranges by improving damping and eliminating instability problems, for example, by compensating cross-coupling destabilizing effects; reducing startup torque and energy dissipation in bearings; compensating thermal effects. It is shown that such controllable bearings can act as "smart" components and be applied to rotating machines with the goal of avoiding unexpected stops of plants, performing rotordynamic tests and identifying model parameters "on site". Emphasis is given to the controllable lubrication (active lubrication) applied to different types of oil film bearings, i.e., as tilting-pad bearings, multirecess journal bearings and plain bearings.
Original languageEnglish
Title of host publicationIUTAM Symposium on Emerging Trends in Rotordynamics
EditorsK. Gupta
Number of pages555
Publication date2011
ISBN (Print)9789400700192
Publication statusPublished - 2011
EventIUTAM Symposium on Emerging Trends in Rotordynamics - New Delhi, India
Duration: 1 Jan 2009 → …


ConferenceIUTAM Symposium on Emerging Trends in Rotordynamics
CityNew Delhi, India
Period01/01/2009 → …
SeriesI U T A M Bookseries


  • Bearing parameter identification
  • Active lubrication
  • Smaet bearings
  • Bearing testing
  • Controllable bearings
  • Rotortronics
  • Active rotor vibration control

Cite this

Santos, I. (2011). Trends in Controllable Oil Film Bearings. In K. Gupta (Ed.), IUTAM Symposium on Emerging Trends in Rotordynamics (pp. 185-199). Springer. I U T A M Bookseries, No. 25