离心力作用下轴承滚道润滑剂流失与定量补油数值模拟

authored by

Junbin Gao, Ping Yang, Xinming Li, Zhiwei Gao, Feng Guo, Gerhard Poll

Abstract

Using a thin layer free surface flow model, the lubricant flow driven by centrifugal force on a high-speed rolling bearing surface was numerically simulated. The layer thickness and lubrication state can be regulated by an external quantitative lubricant supply. The results show that the lubricant on the bearing surface was nonlinearly decayed under centrifugal force, pushing the contacts into starvation states. The surface tension was insignificant compared with the centrifugal force that the lubricant replenishment induced by surface tension can be ignored. Thus, the lubricant replenishment had to turn to the external lubricant supply. A lubricant loss-feed balance was reached by controlling the lubricant supply interval. The oil layer thickness and hence the contact states could be regulated with minimal amount and multi-time feeding. By this method, an optimal lubrication regime could be reached in rolling bearings.

Organisation(s)

Institute of Machine Elements and Engineering Design

External Organisation(s)

Qingdao Technological University

Type

Article

Journal

Mocaxue Xuebao/Tribology

Volume

44

Pages

1184-1191

No. of pages

8

ISSN

1004-0595

Publication date

2024

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

Mechanics of Materials, Mechanical Engineering, Surfaces, Coatings and Films, Materials Chemistry

Electronic version(s)

https://doi.org/10.16078/j.tribology.2023119 (Access: Closed)