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Performance Analysis of Urethane Packing in the Hydraulic Breaker by a Finite Element Method
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 Title & Authors
Performance Analysis of Urethane Packing in the Hydraulic Breaker by a Finite Element Method
Shin, Hyun Woo; Hong, Jong Woo; Choi, Yi Kwang;
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Performances of urethane packing in the hydraulic breaker were analyzed using a finite element method. Because of high temperature and high pressure in the hydraulic breaker, it is better to use urethane rather than rubber as a packing material. We obtained the physical properties of urethane at elevated temperature by the tensile test. We analyzed buffer seal and U-packing maintaining the pressure and preventing oil leakage. Deformation, stress distribution, contact length, contact pressure of packing at each pressure step were obtained using finite element analysis. As the temperature increases, stress and contact force tend to decrease at low pressure. As the gap between piston and cylinder increases, contact length and contact forces decrease. Consequently, it is possible to design the packing section using these analyses, and construct a system to predict the possibility of oil leakage in the hydraulic breaker.
Hydraulic breaker;Packing;Urethane;Hyperelastic;Finite element method;
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Lee, G. H., Lee, Y. B., and Jeong, D. S., "Development of the Hydraulic Pressure Transducer System for Testing the Impact Energy of Hydraulic Breaker," J. Korean Soc. Precis. Eng., Vol. 21, No. 4, pp. 154-160, 2004.

Sung, W. G., Lee, Y. G., and Song, C. S., "The Development of an Analysis Tool and the Performance Analysis of a Hydraulic Breaker system," J. Korean Soc. Precis. Eng., Vol. 17, No. 4, pp. 189-196, 2000.

Shin, D.-Y. and Kwon, K.-B., "A Study on Performance Optimization of a Hydraulic Breaker," Transactions of the Korean Society of Mechanical Engineers: A, Vol. 35, No. 6, pp. 677-682, 2011.

Kim, B.-S., Kim, M.-G., Byun, D.-W., Lee, S.-M., and Lee, S.-H., "A Study on the Structure Improvement of Bracket Housing for Structural Noise and Vibration Reduction in Hydraulic Breaker," J. Korean Soc. Precis. Eng., Vol. 23, No. 11, pp. 108-115, 2006.

Ha, H. J. and Kim, K. S., "A Study about Reliability Analysis of Hydraulic Breaker through Failure Mode Effect Analysis," Journal of the Applied Reliability, Vol. 9, No. 27, pp. 177-193, 2009.

Lee, S.-B., Yeom, S.-H., Han, C.-Y., and Woo, C.-S., "A Study on Finite Element Analysis and Aging Test for Automotive Grommet," Elastomers and Composites, Vol. 47, No. 3, pp. 201-209, 2012. crossref(new window)

Kim, H. Y. and Kim, J. J., "Hyperelastic Behavior of Rubber and Analysis of Large Deformation of Bush Type Engine Mount using Finite Element Method," Korean Journal of Institute of Metals and Materials, Vol. 31, No. 10, 1993.

Kim, H. K., Park, J. H., Choi, D. H., Yang, K. T., and Lee, Y. I., "A Study on FEM Analysis and Its Endurance Evaluation of an Oil-Damper Rubber Bush for a Railway Vehicle," Journal of the Korean Society of Safety, Vol. 21, No. 2, pp. 15-21, 2006.