TEHL Simulation on the Influence of Lubricants on the Frictional Losses of DLC Coated Gears
TEHL Simulation on the Influence of Lubricants on the Frictional Losses of DLC Coated Gears
复制标题
润滑剂对DLC涂层齿轮摩擦损失影响的TEHL模拟
DOI：
10.3390/lubricants6010017
复制
发表时间：
2018
期刊：
影响因子：
3.5
通讯作者：
K. Stahl
中科院分区：
文献类型：
--
作者：
A. Ziegltrum;T. Lohner;K. Stahl
Diamond-Like Carbon (DLC) coatings can reduce fluid friction in TEHL contacts (thermo-elastohydrodynamic lubrication) of meshing gears. This study investigates the influence of different base oils i.e., mineral, polyalphaolefin and polyglycol oil on the friction of DLC coated spur gears. Thereby, a transient TEHL simulation model based on the finite element based full-system approach coupled iteratively with the thermal equations is applied, considering mechanical and thermal properties of the DLC coatings. Results show a clear reduction of fluid friction in DLC coated gears for all considered lubricants. This can be traced back to higher TEHL temperatures for DLC coated gears, which is due to its low thermal inertia resulting in a thermal insulation effect.
