GSD-6 PITTING FATIGUE IN AUTOMOTIVE PLANETARY GEARSETS(GEAR STRENGTH AND DURABILITY)

概要

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Operating conditions in typical automotive planetary gearsets lead to harsh tribological conditions. Relatively low operating speeds and low viscosity lubricants limit the formation of protective oil films. As power density demands increase, these conditions become more severe and pitting fatigue resistance becomes more important. In this study, typical gear contacts are characterized with two and three dimensional surface finish methods. The results are compared to film thickness predictions made with traditional EHD methods adapted to helical gear geometry and also with 3D contact analysis programs to establish the operating regimes. SEM and digital micro-graphs are used to illustrate the condition of the surfaces at several stages of testing.
一般社団法人日本機械学会の論文
2001-11-15