CFD Analysis of A Starved Four-Pad Tilting-Pad Journal Bearing with An Elastic Support of Pads

2017 International Conference on Aerospace Technology, Communications and Energy Systems

航空航天工程;无线电电子学;能源学

Parovay, E.F.^1 ; Falaleev, S.V.^1

Aircraft Engines Design Department, Samara National Research University, Moskovskoye shosse 34, Samara

443086, Russia^1

关键词: Bearing performance;    Elastic supports;    Hydrodynamic bearings;    Operation regime;    Operational modes;    Radial clearance;    Rotational speed;    Tilting pad journal bearing;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/302/1/012010/pdf
DOI  :  10.1088/1757-899X/302/1/012010

学科分类：航空航天科学

来源: IOP

【 摘 要 】

Tilting-pad journal bearings are widely used in technics. Oil starvation operation regime is not common for hydrodynamic bearings. However, correctly designed low-flow journal bearing have to operate efficiently and consistently on high rotor speeds. An elastic support of bearing pads is a set of elastic pins made of steel. Elastic support allows pads to self-align and achieve an optimal operational mode. The article presents the thermohydrodynamic performance of an axial journal bearing. The study deals with 60 mm diameter four-pad tilting-pad journal bearing, submitted to a static load varying from 1000 to 30000 N with a rotating speed varying from 1000 to 10000 rpm. The investigation focuses on numerical studying the characteristics of low-flow tilting-pad journal bearings under oil starvation conditions. Dependencies of the bearing performance on the load, rotational speed of the shaft, and the size of the radial clearance are presented.