Multi-orifice active tilting-pad journal bearings—Harnessing of synergetic coupling effects

The dynamic performance of tilting-pad journal bearings with controllable radial oil injection is theoretically investigated, exploring the synergetic effect between passive elastohydrodynamics and active radial lubricant injection. exible tilting-pads are modelled as linearly elastic using finite elements. To reduce computational work, a pseudo-modal reduction is applied. of dynamic bearing coefficients as well as the corresponding phase-magnitude plots are presented. synergy between elastohydrodynamics and active control is observed, in particular for bearings with injection orifices far from the pivot line.