Industrial Lubrication and Tribology: Volume 75 Issue 7

Guest editorial: Insights into the work of a new generation of young tribologists

Max Marian

Characteristics in hard conformal EHL line contacts

Ferdinand Schmid, Constantin Paschold, Thomas Lohner, Karsten Stahl

Internal gearings are commonly used in transmissions due to their advantages like high-power density. To ensure high efficiency, load-carrying capacity and good noise behavior, a…

Numerical optimization of highly loaded microtextured contacts: understanding and mastering complexity

Christian Orgeldinger, Tobias Rosnitscheck, Stephan Tremmel

Microtextured surfaces can reduce friction in tribological systems under certain contact conditions. Because it is very time-consuming to determine suitable texture patterns…

Tribological behavior of different doped ta-C coatings for slip-rolling contacts with high hertzian contact pressure

Markus Polzer, Marcel Bartz, Benedict Rothammer, Edgar Schulz, Sandro Wartzack

The curved and tribologically highly stressed surfaces of bearing components pose a major challenge for steel alloys or tribological resistant coatings like tetrahedral amorphous…

Radial shaft seal with different relative velocities and on a 3D printed counter surface

Yongzhen Lin, Ringo Nepp, Jim Gerschler, Matthias Kröger

The purpose of this study is asking for a methodologically representable relation between different relative velocity approaches, counter surfaces and the tribological behavior of…

Experimental study on the tribological behavior of ceramic disks for application in mixer taps under different lubrication conditions

Marlene Kristin Ziegler, Benedict Rothammer, Marcel Bartz, Sandro Wartzack, Patrick Beau, Gregor Patzer, Stephan Henzler, Max Marian

The evaluation of the haptics of water taps and wear-related changes during usage usually involves time- and cost-intensive testing. The purpose of this paper is to abstract the…

Tribology for sustainable solutions: tribometer wear testings of the human dental care tribosystem tooth–bamboo toothbrush–toothpaste

Matthias Reiser, Patrick Beau, Gregor Patzer, Matthias Niessner

Environmentally friendly products are finding a place in everyday lives more frequently, like bamboo toothbrushes. However, the authors find no statement from consumer protection…

A method for the estimation of oil film parameters in an asymmetric rotor-bearing system

Yinsi Chen, Yi Liu, Yuan Li, Heng Liu

Asymmetric rotating machinery supported by oil film bearings is relatively common in practical applications. The purpose of this study is to propose a method for estimating the…

Lubricating characteristics and sealing performance of mixed TEHD analysis of piston-cylinder interface in the piston pump

Kanghao Yan, Dan Huang

In high-pressure pumps, due to the interaction of asperities on the upper and lower surfaces, the piston–cylinder interface suffers severe lubrication and sealing problems during…

Study the behaviour of transient elastohydrodynamic lubrication contact at motion start-up in the presence of surface roughness

Mohamed Abd Alsamieh

This study aims to present a numerical solution for the analysis of the influence of surface roughness as presented by a sinusoidal ripple of different amplitude and wavelength on…

A numerical model with nonuniform grids for the analysis of dynamic characteristics of scratched tilting-pad bearings

Bowen Fan, Keke Yuan, Wei Chen, Shemiao Qi, Yi Liu, Heng Liu

The purpose of this study is to present a numerical model for scratched tilting-pad bearings (STPBs) with nonuniform grids. In addition, the model is used to reveal the effects of…

Effect of the sliding-rolling ratio on the force chain properties of granular flow lubrication interfaces

Pengfei Cheng

To further understand the granular flow lubrication mechanism in metal contact pairs, the effect of sliding-rolling ratio on the force chain properties was investigated.

Effect of acid erosion on the tribological performance of surface texture prepared with laser processing

Wenzhe Ji

The purpose of this study is to further improve the performance of surface texture, the chemical polishing method was introduced and the effect of it on the surface morphology and…