Browsing by Author "Schmitz, Katharina"

Filter results by typing the first few letters
Now showing 1 - 1 of 1
  • Thumbnail Image
    ItemOpen Access
    Elastohydrodynamic simulation of pneumatic sealing friction considering 3D surface topography
    (2022) Bauer, Niklas; Baumann, Matthias; Feldmeth, Simon; Bauer, Frank; Schmitz, Katharina
    This contribution presents an elastohydrodynamic lubrication (EHL) model for pneumatic spool valves. For an accurate estimation of the transient friction of this tribological sealing system, the surface topography of the cylindrical sealing counterfaces of the valve housings are measured and analyzed with an optical surface measurement instrument. Based on the surface topography data, tribological properties and flow factors of the system are derived. It has been found that the consideration of the surface topography has a significant influence on the simulation results of the EHL model, lowering the calculated friction force by up to 20 %.