The martini model in materials science

R Alessandri, F Grünewald, SJ Marrink - Advanced Materials, 2021 - Wiley Online Library
The Martini model, a coarse‐grained force field initially developed with biomolecular
simulations in mind, has found an increasing number of applications in the field of soft …

Stability and skidding behavior of spacecraft porous oil-containing polyimide cages based on high-speed photography technology

S Gao, Q Han, N Zhou, P Pennacchi, F Chu - Tribology International, 2022 - Elsevier
The stability and skidding degree of the porous oil-containing polyimide cage used in the
rolling bearing in spacecraft as a function of cage oil-content ratio, applied load, and rotation …

Effects of porosity on the tribological and mechanical properties of oil-impregnated polyimide

X Xu, X Shu, Q Pei, H Qin, R Guo, X Wang… - Tribology International, 2022 - Elsevier
The porosity of oil-impregnated porous polyimide is closely related to its tribological and
mechanical properties, which is critical to determine the application and service life. Herein …

Study on lubricant release-recycle performance of porous polyimide retainer materials

W Chen, W Wang, H Liang, P Zhu - Langmuir, 2022 - ACS Publications
Oil-impregnated porous polyimide (PI) materials can provide continuous lubricant supply,
which is widely used to manufacture space rolling bearing retainers. The lubrication …

Molecular dynamics simulations of lubricant outflow in porous polyimide retainers of bearings

W Chen, W Wang, H Liang, P Zhu - Langmuir, 2021 - ACS Publications
The retainer of a space rolling bearing widely made of porous polyimide (PI) materials is oil-
impregnated and can continuously release lubricants for lubrication. Understanding the …

Tribological properties of oil-impregnated polyimide in double-contact friction under micro-oil lubrication conditions

J Li, J Liu, K Li, N Zhou, Y Liu, X Hu, S Yin, G Wang - Friction, 2023 - Springer
Oil-impregnated porous polyimide (iPPI) materials are usually used as retainer for bearings.
In these bearings, balls and rings, balls and retainers are two different kinds of contact. In …

Study on flow field characteristics of TPMS porous materials

Z Zhang, H Zhang, J Zhang, S Qin, M Duan - Journal of the Brazilian …, 2023 - Springer
Triply periodic minimal surfaces (TPMS) have been applied in the design of porous
materials due to its various geometric shapes and the ability to construct parametric …

Effects of pore size on the lubrication properties of porous polyimide retainer material

W Chen, W Wang, P Zhu, X Ge - Friction, 2023 - Springer
An oil-impregnated porous polyimide (PI) retainer is used in space rolling bearings to
improve the lubrication performance, which depends on the release of lubricant from the …

Characteristic parameter to predict the lubricant outflow from porous polyimide retainer material

W Chen, P Zhu, H Liang, W Wang - Tribology International, 2022 - Elsevier
The lubrication performance of oil-impregnated porous polyimide retainer depends on the
release of lubricant from the pores. The centrifugal effect induced by rotation is one of the …

Oil-retention and oil-bearing tribological properties of nanoporous copper prepared using a chemical dealloying method

F Chen, J Zhao, H Wang, H Li, G Yin, M Cai, Y Wang… - Metals, 2023 - mdpi.com
The nanoporous structure of oil-impregnated porous copper is closely related to its
tribological and oil-retention properties, which are essential for its anti-friction and anti-wear …