Journal of Drive and Control (드라이브 ㆍ 컨트롤)

The Korean Society for Fluid Power and Construction Equipment (유공압건설기계학회)
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A Study on the Load Characteristics of a Swash Plate Piston Pump Holder (Cradle) with Grooves Considering the Squeeze Effect

스퀴즈 효과를 고려한 사판식 피스톤 펌프 홀더의 그루브 유무에 따른 부하특성에 대한 연구

  • Ju, Gyeong Jin (Department of Mechanical Engineering, Changwon National University) ;
  • Seol, Sang Suk (Department of Mechanical Engineering, Changwon National University) ;
  • Kim, Yong Gil (Department of Mechanical Engineering, Changwon National University) ;
  • Kim, Soo Tae (Department of Mechanical Engineering, Changwon National University)
  • Received : 2019.12.12
  • Accepted : 2019.12.26
  • Published : 2020.03.01
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Abstract

The load characteristics of a piston pump holder due to the squeeze effect are influenced by the surface shape and gap thickness of the holder (cradle). Therefore, the pressure distribution and the load capacity of the piston pump holder due to the squeeze effect are studied by using the CFD software and the surface shape and gap thickness of the piston pump holder are considered. In order to verify the accuracy of numerical results, the load capacities of a circular plate holder are numerically studied, and the accuracy of numerical results is verified by comparing with the theoretical results. Also, the pressure distribution and load capacity of the rectangular plate holder of a piston pump are obtained by using the CFD software. The results show that the load capacity of the square plate holder with grooves is slightly higher at a low gap thickness, but the effects of the number and arrangement of grooves on the load capacity of the holder are weak. We conclude that the load capacity and the maximum pressure are slightly affected due to the existence of grooves on the holder surface, and the fluid storing effect of the holder surface grooves during the operation is likely to prevent the dry-sticking phenomenon.

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References

  1. Y. C. Rhim, "An Analysis of Dynamic Characteristics of Squeeze Film Bearing using Pulsating Flow", Research Report, KOSEF 951-1005-026-1, 1996.
  2. Y. K. Ahn et al., "Performance of Squeeze Film Damper Using Magneto-Rheological Fluid", Proceedings of the KSNVE 2002 Annual Spring Conference, pp.67-70, 2002.
  3. E. J. Gunter, L. E. Barrett and P. E. Allaire, "Design of Nonlinear Squeeze-Film Dampers for Aircraft Engines", Journal of Lubrication Technology, Vol.99, No.1, pp.57-64, 1977. https://doi.org/10.1115/1.3452990
  4. S.-C. Yoon and S. Kang, "Dynamic Oil Film Force Response of a Squeeze Film Damper", Proceedings of the KSME 1991 Spring/Autumn Conference, pp.668-671, 1991.
  5. C. R. Burrows, M. N. Sahinkaya and O. S. Turkay, "An Adaptive Squeeze-Film Bearing", ASME Journal of Tribology, Vol.106, No.1, pp.145-151, 1984. https://doi.org/10.1115/1.3260853
  6. C. Mu, J. Darling and C. R. Burrows, "An Appraisal of a Proposed Active Squeeze Film Damper", Journal of Tribology, Vol.113, No.4 pp.750-754, 1991. https://doi.org/10.1115/1.2920688
  7. S. Dousti, A. Gerami and M. Dousti, "A Numerical CFD Analysis on Supply Groove Effects in High Pressure, Open End Squeeze Film Dampers", International Journal of Engineering Innovation & Research, Vol.5, No.1, pp.80-89, 2016.
  8. L. S. Andres, "Squeeze Film Dampers: Operation, Models and Technical Issues", Modern Lubrication Theory, Note 13, Texas A&M University, TX, 2010.
  9. M. F. Pantano, L. Pagnotta and S. Nigro. "A numerical study of squeeze-film damping in MEMS-based structures including rarefaction effects", Frattura ed Integrità Strutturale, Vol.23, pp.103-113, 2013.
  10. B. J. Hamrock., Fundamentals of Fluid Film Lubrication, McGraw-Hill Education, New York, pp.284-290, 1994.