Tribo-dynamic analysis of high-speed roller bearings for electrified vehicle powertrains
نویسندگان
چکیده
Roller bearings are critical components in electrified powertrains. At high speeds, the role of elastohydrodynamic lubrication (EHL) cannot be ignored, necessitating a tribo-dynamic analysis. This paper investigates behaviour roller under operating conditions present high-speed The bearing motion is obtained experimentally using novel experimental rig. centre's orbital acquired from experiment and used as boundary condition for tribological Results reveal that EHL film thickness increases 0.2 to 1.9 ?m across speed range 0–15 000 rpm. A comparison with conventional dry contact analysis shows load can underestimated if lubricant neglected roller-race deformation.
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ژورنال
عنوان ژورنال: Tribology International
سال: 2021
ISSN: ['0301-679X', '1879-2464']
DOI: https://doi.org/10.1016/j.triboint.2020.106675