Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
권호 표지

Effect of Friction Force on the Dynamic Characteristics of a Flow Divider Valve

Flow Divider Valve의 동특성에 미치는 마찰력의 영향

  • 박태조 (경상대학교 기계공학과, 항공기부품기술연구소) ;
  • 황태영 (한국기계연구원 산업기계그룹)
  • Published : 2000.01.01
Download PDF
⟨ Previous Next ⟩

Abstract

In this paper, a numerical analysis is carried out to show the effect of friction farce on the dynamic characteristics of a flow divider valve. The continuity equations and the equation of motion fur spool are numerically solved. The viscous friction force acting on the spool is considered analyzing the Reynolds equation which governs the viscous flow in the clearance gap between the spool and sleeve. Dynamic characteristics are highly affected by the viscous friction farce whose magnitude is relatively small compare with other fluid forces. Therefore present theoretical formulation and numerical scheme can be used generally in designing and performance evaluation of all the hydraulic spool valve.

Keywords

References

  1. Kwan, D. S. et al., 'A New High Precision Flow-Divider Valve,' Proc. of 35th Nat. Conf. on Fluid Power, 1979
  2. Chan, R. K. et al, 'Mathematical Mode for Predicting the Steady State Flow Dividing Error of a Piston-Type Flow-Divider Valve,' Proc. of 35th Nat. Conf. on Fluid Power, 1979
  3. Chan, R. K. et al, 'A Single Stage Precision Flow Divider Valve,' Proc. of 36th Nat. Conf. on Fluid Power, 1980
  4. Qing, G. et al, 'Dynamic Response of Flow Divider Valves,' J. of Fluid Control, pp. 20-42, 1986
  5. Park, T. J. and Lee, C. O., 'Hydrodynamic Lateral Force on a Tapered Piston Subjected to a Large Pressure Gradient,' Proc. of 3rd ICFP, pp. 44-48 1993
  6. 이정오, 박태조, '피스톤 형상이 유압피스톤 펌프.모터의 윤활특성에 미치는 영향,' 한국윤활학회지, Vol. 10, No. 3, pp. 47-53, 1994
  7. 박태조, 황태영, 'MATLAB을 이용한 Flow Dicider Valve의 동특성 해석,' 경상대학교 생산기술 연구소논문집, Vol. 14, pp. 291-297, 1998
  8. Meritt, H. E., Hydraulic Control Systems, John Wiley & Sons Inc, 1967