期刊
TRIBOLOGY INTERNATIONAL
卷 181, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.triboint.2023.108307
关键词
Mechanical loss; Friction loss model; Journal bearing; Frictional heat
In this study, a lumped model was developed to consider the frictional heat produced by the rapid rotation of the shaft in turbocharger bearings, aiming at efficient automotive energy management.
Accurate prediction of mechanical losses in turbocharger bearings is necessary for efficient automotive energy management. In this study, a lumped model was developed to consider the frictional heat produced by the rapid rotation of the shaft. It is assumed that frictional heat causes the lubricating oil in contact with the journal, journal bearing, and housing to rise. The model uses the energy equation to calculate the temperature distri-bution of lubricating oil in the journal bearing gap. The trends in the mechanical losses from the prediction model are consistent with the experimental values obtained using the retardation method.
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