Journal
TRIBOLOGY INTERNATIONAL
Volume 107, Issue -, Pages 94-105Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.triboint.2016.11.018
Keywords
Active tilting-pad journal bearings; Adjustable lubrication; Vibration suppression; Rotordynamics
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This is part I of a twofold paper series, of theoretical and experimental nature, presenting the design and implementation of model-based controllers meant for assisting the hybrid and developing the feedback controlled lubrication regimes in active tilting-pad journal bearings (active TPJBs). In part I, the flexible rotor active TPJB modelling is thoroughly covered by establishing the link between the mechanical and hydraulic systems for all regimes. The hybrid lubrication is herein covered in depth; from a control viewpoint, an integral controller to aid such a regime is designed using model-based standard tools. Results show slight improvement on the system dynamic performance by using the hybrid lubrication instead of the passive one. Further improvements are pursued with the active lubrication in part II.
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