Validation of a 1-D Elastohydrodynamic lubrication model

Abstract

The sealing performance of a hydraulic cylinder depends on the characteristics of three essential elements: the rod, the seal and the fluid. To predict the behaviour of a hydraulic seal, including the friction force and leakage rate, a series of theoretical and experimental studies have been carried out. In this article, a one-dimensional elasto-hydrodynamic model of the U-cup hydraulic rod seal is developed taking into account: the roughness of the shaft and lips. The numerical results are validated by experiments previously published.

Keywords

• rod seal
• Surface-textured
• Roughness
• Friction force
• Leakage.