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Behavioral Study of Elastomeric O-Rings Built into Coaxial Sealing Systems
Andrea Deaconescu1, Tudor Deaconescu1
1Department of Industrial Engineering and Management, Transilvania University of Brasov, 500036 Brasov, Romania.
Polymers
|May 14, 2025
Summary
This study models O-ring seals in hydraulic cylinders, calculating contact pressures and areas. It provides recommendations for O-ring mounting and material selection to improve coaxial sealing system performance.
Area of Science:
- Mechanical Engineering
- Tribology
- Fluid Mechanics
Background:
- Coaxial sealing systems are vital in hydraulic cylinders.
- The O-ring is a critical component in these systems, ensuring effective sealing.
- Understanding O-ring contact mechanics is essential for optimizing hydraulic subassembly performance.
Purpose of the Study:
- To develop a physical and mathematical model for O-ring contact in coaxial sealing systems.
- To present a calculation method for contact pressures and areas of O-rings.
- To provide insights into the sealing phenomenon of coaxial systems.
Main Methods:
- Development of a physical and mathematical model for O-ring contact.
- Calculation of pressures generated in O-ring contact areas.
- Determination of O-ring contact area widths.
Main Results:
- A method to calculate O-ring contact pressures and areas is presented.
- The model utilizes material properties (hardness, elasticity modulus, Poisson's coefficient), fluid pressure, and radial deformation.
- Key parameters influencing sealing performance are identified.
Conclusions:
- Recommendations for optimal O-ring mounting are provided.
- Guidance on selecting appropriate material characteristics for O-rings is offered.
- The study enhances the understanding and design of coaxial sealing systems.
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