Analysis of the dirt ingress behavior of sealing elements
Research Task/Objectives
Procedure for the investigation of the dirt ingress behaviour of sealing elements
Sealing elements of hydraulic systems primarily have the function of maintaining the system pressure as well as separating hydraulic oil in the pressure chamber and air in the environment. In order to realize the separation of media, the seals must also prevent the ingress of dirt particles from the environment. The warranty is particularly complicated by moveable transition, such as on cylinder piston rods. To investigate the fundamentals for optimization of sealing elements, the aim of this project is to analyze the influence of material, geometry and surface of the seal on mass transport.
Approach/Results
Test rig for investigation of sealing elements
In order to investigate these basics, the resistance is experimentally determined, which a sealing element opposes to the ingress of dirt depending on geometry, material, degree of wear, concentration of dirt in the environment and rod speed. Furthermore, knows simulation approaches for predicting the dirt ingress behavior of sealing elements and sealing systems are developed with experimental results and new simulation approaches are investigated.
The presented research activities are part of a cooperation with Freudenberg Sealing Technologies GmbH & Co. KG. The authors would like to thank this company for the funding and support.