Roles of Additives to Stabilize Lubricated Rolling–Sliding Contacts

Mild Wear Prediction of Boundary-Lubricated Contacts

In this paper, a wear model is introduced for the mild wear present in boundary-lubricated systems protected by additive-rich lubricants. The model is based on the hypothesis that the mild wear is mainly originating from the removal of the sacrificial layer formed by a chemical reaction between the base material and the additive packages present in the lubricant. By removing a part of this laye...

Starvation Effects in Elasto-hydrodynamically Lubricated Line Contacts

A lubricated contact suffers from starvation when the lubricant does not fill the contact inlet adequately. Such a situation arises due to short lubricant supply or at extremely high speeds. The starvation effect is modeled by shifting the position of the inlet meniscus towards the contact zone. The degree of starvation, so obtained, is plotted as a function of the position of inlet meniscus un...

Friction models for sliding dry, boundary and mixed lubricated contacts

Friction, lubrication, and wear have a strong influence on the performance and behavior of mechanical systems. This paper deals with different friction models for sliding contacts running under different conditions. The models presented are suited to different situations, depending on the type of contact, running conditions, and the behavior of interest. The models will be discussed from simula...

Use of Chemical Soil Additives to Stabilize Off‐road Vehicle Trails

Off‐road vehicle (ORV) use is an increasingly popular form of outdoor recreation throughout the United States. This form of motorized recreation, however, can sometimes lead to serious erosion of trail running surfaces, with resulting export of sediment into forested ecosystems causing environmental degradation. This project was conducted to determine the feasibility of using two types of soil ...

To “stabilize ” or not to “stabilize”?