CFD investigation on the influence of jet velocity of oil-jet lubricated ball bearing on the characteristics of lubrication flow field

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22 Citations (Scopus)

Abstract

Oil-jet lubrication which is widely applied in aero engine, turbo machinery, high power transmission system is one of the most common form of the high speed bearing lubrication. The complex oil-air two-phase flow will exist in the cavity of the oil-jet lubricated high speed rolling bearing because of the stirring of the rolling elements and the cage. The characteristics of the two-phase flow field have a decisive influence on heat generation and temperature distribution of the bearing, which affect performance and service life of the bearing sighificantly. Jet velocity is an important factor that affects the oil-air two-phase flow field in the bearing cavity. The VOF method for multiphase flow and the RNG k-3 turbulence model were used. The flow field in the bearing cavity at different operating speeds and jet velocities was numerically calculated and analyzed. The effects of the jet velocity and the operating speed on the oil volume fraction in the bearing cavity and the churning torque were investigated.

Original languageEnglish
Title of host publicationProceedings of 2015 International Conference on Fluid Power and Mechatronics, FPM 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1324-1328
Number of pages5
ISBN (Electronic)9781479987702
DOIs
Publication statusPublished - 24 Nov 2015
Event7th International Conference on Fluid Power and Mechatronics, FPM 2015 - Harbin, China
Duration: 5 Aug 20157 Aug 2015

Publication series

NameProceedings of 2015 International Conference on Fluid Power and Mechatronics, FPM 2015

Conference

Conference7th International Conference on Fluid Power and Mechatronics, FPM 2015
Country/TerritoryChina
CityHarbin
Period5/08/157/08/15

Keywords

  • CFD
  • ball bearing
  • churning torque
  • jet velocity
  • oil-jet lubrication
  • two-phase flow

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