TY - JOUR
T1 - Nonlinear dynamic performance of tilting-pad journal bearing with adjustable elastic pivot design
AU - Jin, Yingze
AU - Chen, Fei
AU - Zhang, Fan
AU - Yuan, Xiaoyang
N1 - Publisher Copyright:
© 2019 Elsevier Ltd
PY - 2019/8
Y1 - 2019/8
N2 - To improve the security and reliability of a traditional rigid-pivot tilting-pad journal bearing (RPTPJB), a kind of elastic-pivot tilting-pad journal bearing (EPTPJB), which is an adjustable-pivot TPJB that can realize self-adaptive preload factors, is proposed for vertical rotors. The nonlinear movement performance and film load performance of a water-lubricated four-pad EPTPJB are investigated by journal displacements, journal center orbits, minimum film thicknesses, tilting angles and radial displacements of pads using an analytical turbulent hydrodynamic model. The results show a safer film thickness of an EPTPJB and reveal the dynamic performance adjustment mechanism adjusted by pivot stiffness, pre-tightening force and preload factors. This study contributes to the reduction of impact and rubbing between the journal and the pads.
AB - To improve the security and reliability of a traditional rigid-pivot tilting-pad journal bearing (RPTPJB), a kind of elastic-pivot tilting-pad journal bearing (EPTPJB), which is an adjustable-pivot TPJB that can realize self-adaptive preload factors, is proposed for vertical rotors. The nonlinear movement performance and film load performance of a water-lubricated four-pad EPTPJB are investigated by journal displacements, journal center orbits, minimum film thicknesses, tilting angles and radial displacements of pads using an analytical turbulent hydrodynamic model. The results show a safer film thickness of an EPTPJB and reveal the dynamic performance adjustment mechanism adjusted by pivot stiffness, pre-tightening force and preload factors. This study contributes to the reduction of impact and rubbing between the journal and the pads.
KW - Adjustable elastic pivot
KW - Minimum film thickness
KW - Nonlinear dynamic performance
KW - tilting-pad journal bearing
UR - https://www.scopus.com/pages/publications/85064315077
U2 - 10.1016/j.triboint.2019.04.022
DO - 10.1016/j.triboint.2019.04.022
M3 - 文章
AN - SCOPUS:85064315077
SN - 0301-679X
VL - 136
SP - 533
EP - 547
JO - Tribology International
JF - Tribology International
ER -