Journal Published Online: 02 August 2018
Volume 7, Issue 5

Analysis of Oil Film Characteristics of Two-Axial Groove Sleeve Bearings

CODEN: MPCACD

Abstract

Based on the finite finite difference method, the Reynolds equation, the flow equilibrium relationship of oil film gradient, and the oil film thickness equation are solved for different groove locations and depths in two-axial groove sleeve bearings. The oil film pressure, extent of the cavitation zone, and carrying capacity of two-axial groove sleeve bearings are computed at different oil groove locations and depths. With the increase of oil groove depth, the oil film pressure of two-axial groove sleeve bearings decreases noticeably, and the bearing capacity decreases gradually. It can be concluded that the maximum oil film pressure and bearing capacity of two-axial groove sleeve bearings are lower than that of the common sleeve bearing. With the groove position moving along the circumferential direction, the oil film pressure peak heights and bearing capacities decrease and then increase. The oil film pressure peak heights and load capacities reach maximum when the position of the two-axial oil groove is about 20° and 200°. It has been proven that different positions of oil grooves show different influences on the extent of the cavitation zone. The first oil groove is always located in the full oil film region, and the second oil groove may be located in the full oil film region or the cavitation region because of the change of distance from the convergent wedge of the bearing. The cavitation area firstly decreases and then increases with the movement of the groove in the circumferential direction.

Author Information

Wang, Li-li
College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao Economic & Technical Development Zone, Qingdao, Shandong Province, China
Wei, Yu-liang
College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao Economic & Technical Development Zone, Qingdao, Shandong Province, China
Yuan, Guo-teng
College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao Economic & Technical Development Zone, Qingdao, Shandong Province, China
Zhao, Xing-tang
College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao Economic & Technical Development Zone, Qingdao, Shandong Province, China
Geng, Huan
College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao Economic & Technical Development Zone, Qingdao, Shandong Province, China
Pages: 13
Price: $25.00
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Stock #: MPC20170155
ISSN: 2379-1365
DOI: 10.1520/MPC20170155