Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
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Finite Element Approach to Socket Shape Design of a Concave Piston Assembly for a High Pressure Hydraulic Pump

유한요소법을 이용한 고압유압펌프용 오목형 피스톤 조립체의 소켓 형상 설계

  • 엄재근 (경상대학교 대학원 기계공학과) ;
  • 이민철 (경상대학교 항공기부품기술연구소) ;
  • 최인수 (경상대학교 대학원 기계공학과) ;
  • 조유종 (동명중공업(주)) ;
  • 전만수 (경상대학교 기계항공공학부)
  • Published : 2006.11.01
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Abstract

A systematic approach to socket shape design of a concave piston assembly for a high pressure hydraulic pump of an excavator is presented in this paper. A design model is given and a methodology of socket shape design is proposed. An axisymmetric rigid-plastic finite element method is employed for predicting the approximate socket shape formed by a rotary forming process as well as for simulating the test process for separating the shoe from the piston assembly designed. It is verified that the predictions are in good agreement with the experiments. The approach is successfully applied to developing an optimal concave piston assembly.

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References

  1. Jun, B. Y., Cho, H. S., Sub, K. S., Cho, Y. J., Jung, Y. Y. and Joun, M. S., 2006, 'Rotary Forming Equipment for Precision Joining of the Ball and the Socket,' KSME Spring Conference, Jeju, pp. 492-496.
  2. Lee, C. H. and Kobayashi, S., 1973, 'New Solution to Rigid-Plastic Deformation Problems Using a Matrix Method,' Trans. ASME, J. of Eng. For Ind., Vol. 95, pp 865-873 https://doi.org/10.1115/1.3438238
  3. Lee, N. K., Yoon, J. H. and Yang, D. Y., 1989, 'The Simulation of Dies and Forming Processes for Cold Forging by Using Rigid-Plastic Finite Element Analysis,' KSME, Vol. 13, No. 6, pp. 1082-1091
  4. Oh, S. I., 1982, 'Finite Element Analysis of Metal Forming Processes with Arbitrarily Shaped Dies,' Int. J. Mech. Sci., Vol. 24, pp. 479-493 https://doi.org/10.1016/0020-7403(82)90058-3
  5. Chen, C. C. and Kobayashi, S., 1978, 'Rigid-Plastic Finite Element Analysis of Ring Compression,' Appl. of Num. Methods to Forming Process, ASME, AMD 28 pp.163-174
  6. Joun, M. S. and Lee, H. I., 2000, From Continuum Mechanics to Finite Element Method, Prentice Hall
  7. Moon, H. K., Lee, M. C., Chung, J. H. and Joun, M. S., 2005, 'Finite Element Analysis of a Rotary Forging for Bearing Assembly,' Proc. of the 8th ICTP, Verona, pp. 333-334
  8. Lee, S. W. and Joun, M. S., 2000, 'RigidViscoplastic Finite Element Analysis of Piercing Process in Automatic Simulation of Multi-Stage Forging Processes,' J. of Mat. Proc. Tech., Vol. 104, pp 207-214 https://doi.org/10.1016/S0924-0136(00)00563-X