The rubber seal is a feature inserted into the servo cylinder to keep the air pressure constant. In order for efficient movements the frictional coefficient of the rubber seal needs to be minimized while the sealing is intact. In this work the frictio...
The rubber seal is a feature inserted into the servo cylinder to keep the air pressure constant. In order for efficient movements the frictional coefficient of the rubber seal needs to be minimized while the sealing is intact. In this work the friction characteristics of rubber on metal plate at various conditions are tested. The varying experimental conditions include roughness level, applied pressure, lubrication, and rubbing speed. The design of experiment approach is taken to assess the effect of each parameter. The nonlinear frictional response of the rubber is applied to the FEM model simulating the servo cylinder movement. The result demonstrates that precise optimization of the servo cylinder movement must be preceded by preliminary experiments coupled with the theory and FEM model.