A5041935046- Railway Engineering and Dynamics
- Adhesion, Friction, and Surface Interactions
- Brake Systems and Friction Analysis
- Tribology and Lubrication Engineering
- Lubricants and Their Additives
- Electrical Contact Performance and Analysis
- Mechanical stress and fatigue analysis
- Railway Systems and Energy Efficiency
Brno University of Technology
2022-2024
The effect of top rail lubricant composition on adhesion has been investigated using a laboratory ball-on-disc tribometer. Rheological properties were analysed viscosimeter and high pressure torsion device. As base medium, biodegradable ester oil with bentonite thickener was selected. Added particles for friction modification aluminium oxide, zinc copper sulfide solid lubricants molybdenum disulfide graphite. these components in the medium evaluated. It found that most dominant component...
Abstract Top-of-rail (TOR) lubricants are commonly used for friction control in railway operations. They aim to lower and reduce noise wear while ensuring sufficient transmission of traction/braking forces. However, the wheel–rail interface is an open system, so conditions may suddenly change due weather, different contaminants enter contact influence performance these lubricants. Thus, this study examined effect humidity dew on two commercial products, as often occur track. A methodology...