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Deformations of a piezo‐actuated bearing ring in journal bearings

Bitner, Alexander ORCID iD icon 1; Seemann, Wolfgang
1 Institut für Technische Mechanik (ITM), Karlsruher Institut für Technologie (KIT)


An elastically deformable bearing ring is investigated. The piezo-actuated shaping of the elastic bearing ring as well as the journal motion are coupled and determine the height of the lubrication gap which takes a crucial part in the theory of hydrodynamic lubrication. The influence of the active-dynamic shaping of the bearing ring on the rotor dynamic behaviour has been investigated in [1], especially for a two-lobe journal bearing. The present investigations are aiming at the active-static shaping of a bearing ring, i.e. a finite number of piezo actuators is used to cause deformations of the bearing ring. Moreover, the realisation of different shapes by the introduced piezo actuators is examined, whereas the desired shapes are not necessarily limited to two-lobe geometries.

Verlagsausgabe §
DOI: 10.5445/IR/1000151730
Veröffentlicht am 21.10.2022
DOI: 10.1002/pamm.202100221
Zitationen: 1
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Technische Mechanik (ITM)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 12.2021
Sprache Englisch
Identifikator ISSN: 1617-7061
KITopen-ID: 1000151730
Erschienen in PAMM
Verlag Wiley-VCH Verlag
Band 21
Heft 1
Seiten e202100221
Vorab online veröffentlicht am 14.12.2021
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