A Numerical Study on Thermal Elastohydrodynamic Lubrication of Coated Polymers
A Numerical Study on Thermal Elastohydrodynamic Lubrication of Coated Polymers
复制标题
涂层聚合物热弹流体动力润滑的数值研究
DOI：
10.1007/s11249-020-01309-6
复制
发表时间：
2020
影响因子：
3.2
通讯作者：
Lohner
中科院分区：
文献类型：
--
作者：
Ziegltrum;Lohner
The application of polymers in power-transmitting machine elements, e.g., gears, is limited by moderate thermo-mechanical properties and the detrimental accumulation of contact heat, even with external lubrication. Hence, polymer rolling–sliding elements are often prone to thermo-mechanical overload or abrasive wear. Diamond-like carbon (DLC) coatings are well known from steel applications for enhancing wear resistance and reducing friction. Since preliminary results indicate promising results for such coatings for polymers as well, their influence on the behavior of lubricated polymer contacts is investigated by numerical simulation. For polymer–steel contacts, the mechanical and thermophysical properties of coating and polymer are varied. The contact geometry is dominated by a local conformity, in which most of the deformation is related to the polymer. The DLC coatings affect film thickness and hydrodynamic pressure only little even for untypical high coating thicknesses. In contrast, the contact temperature decreases already for very thin coatings due to enhanced heat removal. Hence, DLC coatings can act as a thermal barrier protecting the polymer from detrimental heat and protecting the polymer from abrasive wear.
登录
查看更多内容
DOI：
10.1243/1350650971542417
发表时间：
1997
期刊：
Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology
影响因子：
--
作者：
C. Hooke;P. Huang
通讯作者：
P. Huang
润滑剂对DLC涂层齿轮摩擦损失影响的TEHL模拟
影响因子：
3.5
作者：
A. Ziegltrum;T. Lohner;K. Stahl
通讯作者：
K. Stahl
DOI：
10.1007/s10010-017-0230-4
发表时间：
2017-09-01
影响因子：
1.1
作者：
Maier, Enzo;Ziegltrum, Andreas;Stahl, Karsten
通讯作者：
Stahl, Karsten
两种参考液体的粘度和体积与温度和压力的关系
影响因子：
1.9
作者：
S. Bair
通讯作者：
S. Bair
EHD 薄膜厚度的粗略剪切稀化校正
影响因子：
2.1
作者：
S. Bair
通讯作者：
S. Bair