English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

When a hydrodynamic journal bearing works under an excessively heavy load, there occurs the very small bearing clearance where physical adsorbed layer boundary lubrication is present. For evaluating the performance of such a hydrodynamic journal bearing, an analysis is here presented by incorporating both the hydrodynamic lubrication and the boundary lubrication which respectively occur in different lubricated areas. The calculation results show that the boundary lubrication effect significantly increases the lubricating film pressure and load-carrying capacity of the bearing especially when the fluid-bearing surface interaction is strong, as compared to the conventional hydrodynamic lubrication theory calculations; Stronger the boundary lubrication, closer to the exit of the bearing the location where the maximum film pressure occurs, and nearer to the minimum bearing surface separation the exit of the bearing.

Analysis of hydrodynamic journal bearing with mixed hydrodynamic and boundary films