squeezed-film damper – TechConnect Briefs

Extending the Validity of Existing Squeezed-Film Damper Models with Elongations of Surface Dimensions

Veijola T., Pursula A., Helsinki University of Technology, FI

Border flow effects in squeezed-film dampers having a gap separation comparable with the surface dimensions are studied with 2D and 3D FEM simulations and with analytic models derived from the linearized Reynolds equation for small [...]

End Effects of Rare Gas Flow in Short Channels and in Squeezed-Film Dampers

Veijola T., Helsinki University of Technology, FI

Simple approximate design formulas (+-5%) for calculating the elongation of the idealized viscous flow channel of rare gas at Knudsen numbers Kn < 100 due to the open end effects. Rectangular channels with a large [...]