Paper XIII (iii) A New Concept in Rotary Shaft Seal Lubrication: Viscoelastohydrodynamic (VEHD) Lubrication

Theory of lubrication of elastomeric rotary shaft seals

“…A more detailed analysis of load support produced by radial oscillations due to eccentricity, misalignment or shaft out-of-roundness was performed by Stakenborg, et al [24] and van Leeuwen and Stakenborg [25,26]. This analysis involved a viscoelastic finite element model of the lip coupled with a finite difference solution to the Reynolds equation.…”

Soft elastohydrodynamic analysis of rotary lip seals

“…Stakenborg and coworkers [49][50][51] developed an EHL seal model with the emphasis on viscoelastic effects. Of interest is the dynamic seal behaviour resulting from shaft eccentricity and out of roundness.…”

Solid viscoelasticity in contact mechanics and elastohydrodynamic lubrication

“…inlet lm collapse, inlet pressure peak and abnormal Stribeck curve [96,114,123]. This work studies the soft lubrication of point contacts, including viscoelastic solid behavior, in short, the visco-elastohydrodynamic lubrication (VEHL) of point contact problems [137]. The main di erence between EHL and VEHL is in their di erent deformation response to an external load in static and/or dynamic rolling/sliding contacts, as a result of the di erent rheological behavior of elastic and viscoelastic materials.…”