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A Study on the Relationship between Stress Relaxation and Performance of a Lip Seal  

Yoo, Myung-Ho (Research Center of SJ Tech Co., Ltd.)
Lee, Taek-Sung (Department of Mechanical Design Engineering, Korea Polytechnic Univ.)
Publication Information
Journal of the Korean Society for Precision Engineering / v.26, no.11, 2009 , pp. 85-91 More about this Journal
Abstract
A lip seal is widely used not only to prevent leakage of fluids from an actuator or a rotating shaft but also to exclude outside substances. Recently, TPU(Thermoplastic Polyurethane), which is one of the sealing materials, has been frequently used due to its excellent mechanical properties and wear resistance. The material constants for finite element analysis through the experiment on stress relaxation are presented. The reaction forces of a shaft as well as the contact pressures of a lip seal under condition before and after stress relaxation using finite element analysis were obtained, The results show that stress relaxation has not a little effect on the performance of a lip seal.
Keywords
Stress Relaxation; TPU; Lip Seal; Finite Element Analysis; Contact Pressure;
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  • Reference
1 Kim, W. D., Kim, W. S. and Kim, C. H., "Determination of Rubber Material Model and the Deformation Behaviors of Rubber Component Considering Mullins Effect," KIMM Research Report-UCN236-712.M, 1999
2 Lee, K. O., Hur, Y. M., Kang, J. H. and Kang, S. S., "Performance estimation of dust wiper for hydraulic cylinders and optimization of geometric design variables," Journal of Materials Processing Technology, Vol. 187-188, pp. 215-219, 2007   DOI   ScienceOn
3 Nikas, G. K. and Sayles, R. S. "Nonlinear Elasticity of Rectangular Elastomeric Seals and Its Effect on Elastomer Hydrodynamic Numerical Analysis," Tribology International Journal, Vol. 37, pp. 651-660, 2004   DOI   ScienceOn
4 MSC. MARC, "Experiental Elastomer Analysis," MSC. Software Corporation, 2005
5 Rivlin, R. S., "Large elastic deformations of isotropic materials Ⅳ: Further developments of the general theory," Philosophical Transactions of the Royal Society of London. Series A: Mathematical and Physical Sciences, Vol. 241, pp. 379-397, 1948   DOI
6 Mokhtar, M. O. A., Mohamed, M. A. A., El-Giddawy, M. E. and Yassaen, S. A. Y., "On the Effect of Misalignment on the Performance of U-type Lip Seal," Wear, Vol. 223, No. 1-2, pp. 139-142, 1998   DOI   ScienceOn
7 Kim, W. D., Kim, W. S., Woo, C. S. and Lee, H. J., "Experimental Testing of Rubber Material for Finite Element Analysis," Proceedings of KSME Spring Conference, Vol. 1, No. 1, pp. 704-709, 2001
8 Gent, A. N., "Engineering with Rubber," Oxford University Press, 1992
9 Muller, H. K. and Nau, B. S., "Fluid Sealing Technology, Principles and Application," Marcel Dekker, Inc., pp. 104-109, 1998