Abstract
The elastomeric O-ring seals have been widely used as sealing elements in hydraulic systems. The sealing performance of O-ring seals is related to stress distribution. The stresses distribution depends on the squeeze rate and internal pressure, and would vary with properties of O-ring seals materials. Thus, in order to study the sealing performance of O-ring seals, it is necessary to describe the analytic relationship between stress distribution and properties of O-ring seals materials. For this purpose, a novel Stress distribution analytical model (SDAM) is proposed in this paper. The analytical model utilizes two stress complex functions to describe the stress distribution of O-ring seals. The proposed SDAM can express not only the analytical relationship between stress distribution and Young’s modulus, but also the one between stress distribution and Poisson’s ratio. Finally, compared results between finite element analysis and the SDAM validate that the proposed model can effectively reveal the stress distribution under different properties for O-ring materials.
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Recommended by Associate Editor Jun-Sik Kim
Di Wu is currently a Ph.D. candidate in Mechatronics Engineering of Beihang University, China. His main research interests are dynamic fracture mechanics, stress analysis, thermal analysis etc.
Shaoping Wang received the Ph.D., M.Eng. and B.Eng. degrees in Mechatronics Engineering from Beihang University, China, in 1994, 1991 and 1988. She has been with the Automation Science and Electrical Engineering at Beihang University since 1994 and promoted to the rank of Professor in 2000. Her research interests include engineering reliability, fault diagnostic, prognostic and health management, active fault tolerant control.
Xingjian Wang received the Ph.D. and B.Eng. degrees in mechatronics engineering from Beihang University, China, in 2012 and 2006. He is currently with the School of Automation Science and Electrical Engineering, Beihang University, Beijing, China. His research interests include nonlinear control, fault diagnostic, prognostic and health management, fault tolerant control.
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Wu, D., Wang, S. & Wang, X. A novel stress distribution analytical model of O-ring seals under different properties of materials. J Mech Sci Technol 31, 289–296 (2017). https://doi.org/10.1007/s12206-016-1231-1
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DOI: https://doi.org/10.1007/s12206-016-1231-1