Premium
Load performance analysis of three‐pad fixing pad aerodynamic journal bearings with parabolic grooves
Author(s) -
Liu Fuxi,
Lu Yanjun,
Zhang Qimeng,
Zhang Yongfang,
Gupta Parag,
Müller Norbert
Publication year - 2016
Publication title -
lubrication science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.632
H-Index - 36
eISSN - 1557-6833
pISSN - 0954-0075
DOI - 10.1002/ls.1326
Subject(s) - bearing (navigation) , materials science , load bearing , aerodynamics , bearing surface , composite material , structural engineering , lubrication , mechanics , computer science , engineering , physics , artificial intelligence
Three‐pad fixing pad aerodynamic journal bearings (TPFPAJBs) have been widely used in precision instruments due to their low friction, high stability and non‐pollution. In order to improve the load performance of TPFPAJBs, parabolic grooves are opened in the bearing pad surfaces. By opening parabolic grooves in various bearing pad surfaces, the effects of the orientation angle, distance, width and depth of the grooves on the load performance of micro‐grooved TPFPAJBs can be investigated. The numerical results show that the location of the micro‐grooved bearing pads can greatly affect the load performance of micro‐grooved TPFPAJBs. When the given bearing pad surface is grooved, the effects of the bearing number and width‐to‐diameter ratio on the load performance of micro‐grooved TPFPAJBs can be studied. The bearing number and width‐to‐diameter ratio are observed to have significant influences on the load performance of micro‐grooved TPFPAJBs. Copyright © 2015 John Wiley & Sons, Ltd.