Open AccessEffect of the axial movement of misaligned journal on the performance of hydrodynamic lubrication journal bearing with rough surface
Author(s) -
Biao Li,
Jun Sun,
Shaoyu Zhu,
Yangyang Fu,
Xilu Zhao,
Hu Wang,
Quincy Teng,
Yan-Xia Ren,
Yunqiang Li,
Guangcan Zhu
Publication year - 2019
Publication title -
mechanics and industry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.256
H-Index - 18
eISSN - 2257-7777
pISSN - 2257-7750
DOI - 10.1051/meca/2019028
Subject(s) - lubrication , bearing (navigation) , reynolds equation , fluid bearing , movement (music) , surface roughness , mechanics , bearing surface , surface finish , materials science , mechanical engineering , physics , engineering , reynolds number , composite material , acoustics , turbulence , astronomy
Generally, the movement of journal along the direction of bearing axis under the combined action of various factors is neglected in the lubrication study of bearing, which is quite different from the actual working condition of bearing in the shaft-bearing system. In this paper, with a comprehensive consideration of the axial movement of journal, the surface topography of journal and bearing and the misalignment of journal, a new model about the hydrodynamic lubrication of misaligned journal bearing is established based on the average Reynolds equation. Considering the effect of the axial movement of misaligned journal, the lubrication characteristics parameters of rough journal bearing is presented and mainly discussed. The results show that the axial movement of misaligned journal has a distinct effect on the bearing lubrication characteristics. The influence of the axial movement of misaligned journal on the bearing lubrication characteristics is slightly reduced when considering the surface roughness.