Industrial Lubrication and Tribology: Volume 73 Issue 3

Effect of slip position on the hydrodynamic performance of liquid film seal

Yun-lei Wang, Jiu-hui Wu, Zhen-tao Li, Lu-shuai Xu

The purpose of this paper is to investigate the effect of slip position on the performance of liquid film seal.

Solid–liquid two-phase flow and erosion calculation of butterfly valves at small opening based on DEM method

Benliang Xu, Zuchao Zhu, Zhe Lin, Dongrui Wang

The study aims to decrease the effect of solid particles on a butterfly valve, which will cause seal failure and leakage, providing a reference for anti-wear design.

Experimental dynamic analysis of rod-fastening rotor bearing system with a transverse crack

Nanshan Wang, Heng Liu, Qidan Wang, Shemiao Qi, Yi Liu

This study aims to obtain the dynamic behaviours of cracked rod-fastening rotor bearing system (RFBS), and experimental investigation was carried out to examine the dynamic…

Tribology meets sustainability

Raj Shah, Mathias Woydt, Nabill Huq, Andreas Rosenkranz

This paper aims to present a comprehensive perspective on how tribology and sustainability are related and intertwined and are linked to CO₂ emissions. This paper emphasizes on…

Effects of polymers concentration on EHL film-forming in point contacts

Liangwei Qiu, Xiaoyang Chen, Fakai Dong

This paper aims to experimentally investigate the film-forming capability of base oils containing poly-methacrylate (PMA) and poly-isobutene (PIB), in a point contact under pure…

Effect of shot peening on the wear behavior of Ti(C,N) coating on TA15 alloy prepared by double glow plasma carbonitriding

Lin Xue, Qiang Miao, Wenping Liang, Hui Zhao, Weiwei Shi, Shiwei Zuo, Hanchun Ma

The purpose of this paper is to prepare Ti(C,N) coatings on TA15 treated and not treated by shot peening using double glow plasma alloying technique. The effect of shot peening on…

An improved degraded adhesion model for wheel–rail under braking conditions

Wenliang Zhu, Wenjian Zhu, Shubin Zheng, Na Wu

The purpose of this paper is to develop an improved adhesion model to better reproduce the low adhesion condition of the anti-skid control for rail vehicles under braking…

DLC-coated spur gears – part I: friction reduction

Andreas Schwarz, Martin Ebner, Thomas Lohner, Karsten Stahl, Kirsten Bobzin, Tobias Brögelmann, Christian Kalscheuer, Matthias Thiex

This paper aims to address the influence of diamond-like carbon (DLC) coatings on the frictional power loss of spur gears. It shows potentials for friction and bulk temperature…

CFD-based calculation method of convective heat transfer coefficient of spiral bevel gear in intermediate gearbox under splash lubrication

Fengxia Lu, Meng Wang, Weizhen Liu, Heyun Bao, Rupeng Zhu

This paper aims to propose a numerical method to calculate the convective heat transfer coefficient of spiral bevel gears under the condition of splash lubrication and to reveal…

Experimental study on line-contact elastohydrodynamic grease lubrication properties of surface-textured rollers

Fuqin Yang, Dexing Hu, Qianhao Xiao, Shun Zhao

This paper aims to study line-contact elastohydrodynamic grease lubrication properties of surface-textured rollers as well as the effect of different crown widths (dw) on oil film…

Numerical investigation on single dent in EHL point contacts

Qiancheng Qin, Xue-Feng Wang, Rufu Hu, Xiaomin Cheng

This study aims to investigate the effects of single dent on the film thickness and pressure in elastohydrodynamically lubricated (EHL) point contacts by numerical analysis.

The influences of lubricant groove shape on the tribological properties of journal bearing under the grease lubrication conditions

Shicheng Yan, Yahong Xue, Liming Wei, Zhanchao Wang

This paper aims to elucidate the effects of lubricant groove shape, vertical load, swing angle and grease injection cycle on the friction and wear performances of journal bearings…

Simulation and experimental study on lubrication of high-speed reducer of electric vehicle

Fuchun Jia, Yulong Lei, Xianghuan Liu, Yao Fu, Jianlong Hu

The lubrication of the high-speed reducer of an electric vehicle is investigated. The specific contents include visualization of the flow field inside reducer, lubrication…

Molecular dynamics investigation of frictional decomposition behavior of HMX-tool interface in diamond cutting of HMX crystals

Zhimin Cao, Wenjun Zong, Junjie Zhang, Chunlei He, Jiaohu Huang, Wei Liu, Zhiyong Wei

This paper aims to reveal the tribochemical reaction mechanism on the nano-cutting interface between HMX crystal and diamond tool.

Multiscale convolutional neural network and decision fusion for rolling bearing fault diagnosis

Defeng Lv, Huawei Wang, Changchang Che

The purpose of this study is to achieve an accurate intelligent fault diagnosis of rolling bearing.

Ultra-high-speed TEHL characteristics of T-groove face seal under supercritical CO2 condition

Delei Zhu, Shaoxian Bai

The purpose of this paper is to acquire sealing properties of supercritical CO₂ (S-CO₂) T-groove seal under ultra-high-speed conditions by thermo-elastohydrodynamic lubrication…

The influence of surface roughness and viscosity on micropitting damage

Wei Li, Liantao Lu

This study aims to investigate the influence of surface roughness and viscosity on micropitting and their influence sequence.

Experimental study on friction coefficient and temperature rise of heavy-load grease-lubricated spherical plain bearings with surface texture

Jinlong Shen, Tong Zhang, Jimin Xu, Xiaojun LIU, Kun Liu

This paper aims to improve the tribological performance of grease-lubricated spherical plain bearings (SPBs) under heavy load, dimple-type textures were prepared by laser on the…