Abstract: Planetary gear trains (PGTs) are used in automatic transmission to achieve any desired speed ratios. At present, the study on the relationship between speed ratio and topology is not significant. Therefore, this paper ...

Abstract: An integrated model is proposed for involute gear pair combining the mixed elastodhydrodynamic lubrication (EHL) theory for finite line contact with surface temperature rise equations considering tribodynamic loading ...

Abstract: A tribodynamic model of a spiralgroove rotary seal ring is developed through coupling lubrication and dynamic equations. Effects of centrifugation, hydrodynamics, cavitation, and asperity contact are considered. To represent ...

Abstract: To obtain multiple speed ratios, a synthesis methodology of planetary gear trains (PGTs) with multiple operating degreesoffreedom (DOFs) is proposed based on the variable structure method. Variable structure of PGT is ...