A Study on Pressure Characteristic in Various Inner Structure of Valves

밸브 운동부 구조 변화에 따른 압력특성에 관한 연구

  • 허정규 (전남대학교 기관시스템공학) ;
  • 오인호 (한국해양대학교 기관시스템공학부) ;
  • 양경욱 (전남대학교 해양기술학부)
  • Received : 2010.05.20
  • Accepted : 2010.05.31
  • Published : 2010.06.30

Abstract

In general, the control valves are essential components in hydraulic systems. Structural changes within the valves remain a challenge because many parameters of valve tend to interact in terms of static and dynamic performance. Therefore, the valve characteristics is applied directly to the stability of hydraulic system. Inner structure of the valve which is used mainly in the industries is made up poppet type and spool type. This paper made a description of the method for numerical analysis and modeling of the valve with a built-in moving part of four-type. Based on the physical parameters of the valves, a numerical model of objected valve is developed using the bond graph method. It is to verified the results that the moving part of four-type has an effect on pressure and flow characteristics. Also, It is analyzed the results which has an effect on response characteristic by angular of poppet valve face and inertia variation of the valve with a built-in moving part. In the results, it is confirmed that the rising and settling time vary with the shape of moving part in valve.

Keywords

References

  1. K. Dasgupta, R. Karmakar, 2002, "Dynamic analysis of pilot operated pressure relief valve", Simulation Modelling Practice and Theory 10, pp. 35-49. https://doi.org/10.1016/S1569-190X(02)00061-8
  2. Hayashi S., Yamamoto H. and Iimura I. 1995, "Influence of drain orifice on poppet valve stability", J. Japan Hydraulics and Pneumatics Soc., 24(2), pp. 283-290.
  3. T. Takaneka, 2000, "Performance of a hydraulic pressure control valve", JSME, Vol. 66, pp. 538-540.
  4. K. U. Yang, I. Y. Lee, 2002, "A Modeling of Proportional Pressure Control Valve and its Control", KSPSE, Vol. 6, No. 3, pp. 71-77.
  5. J. G. Hur, K. U. Yang, 2008, "Numerical Analysis of Proportional Pressure Control Valve using Bond graph", KSPSE, Vol. 12, No. 2, pp. 62-70.
  6. Dean C. Karnopp, Donald L. Margolis and Ronald C. Rosenberg, 2000, "System Dynamics", John Willy & Sons, pp. 12-59, 400-423.
  7. Herbert E. Merritt, 1966, "HYDRAULIC CONTROL SYSTEMS", John Wiley & Sons, pp. 35-53.