Design of Experiments and Simulations for Friction Effects on Polymer O-Rings Main Objectives and Experimental Setup
Coefficient of Friction
Design Module Inserts Experiment Using Existing Setup Determine Coefficent of Friction ABAQUS Simulations
First Using a Dry Setup: Second Using Lubricated Experiment Setup
Identify Trends from Simulations and Experiments
No Pressure Low Speed
Piston Experiment Results (214 Insert)
ABAQUS Simulations
Module Development
Shaft-Ring Surface Contact Area O-ring Configuration
Axisymmetric models were created to replicate our Module designs to simulate frictional effects on the O-rings in our experiment.
Simulation Results (318 Insert) Piston Experiments
Factors O-ring Size (120,214,318) Pressure (250 psi-1750 psi) Squeeze (10%, 20%) Temperature (25 C, 150 C)
The The coefficient coefficient between between the the O-ring O-ring material material (viton) (viton) and and the the stainless stainless steel steel shaft shaft was was found found to to be be 0.25, 0.25, and and is is being being used used in in ABAQUS ABAQUS simulations. simulations.
Three different pressure simulations were conducted for each 0-ring size at 10% and 20% squeeze.