Steady Hydrodynamic Force Analysis of Non-Circular Opening Hydraulic Spool Valve

Abstract:

Hydrodynamic force is one of the important factors to be considered in the design of hydraulic valves. In this paper, mathematical formula of steady hydrodynamic force was deduced basing on non-circular opening spool valve structure and working principle. The simulations were carried out with software FLUENT at differential pressure, different valve port openings, and then the variation of the steady hydrodynamic force can be obtained. The results show that the direction of the steady hydrodynamic force is opposite to the movement of the valve spool and tends to close the valve port; the magnitude of the steady hydrodynamic force is proportional to the valve opening and differential pressure respectively.

• Periodical: Applied Mechanics and Materials (Volumes 220-223)
• Pages: 1657-1660
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.220-223.1657
• Online since: November 2012
• Authors: Hao Huang, Xiong Li, Zhong Wei Sun
• Keywords: Fluid Simulation, Non-Circular Opening Spool Valve, Steady Hydrodynamic Force

References

[1] Kuisheng Chen: Hydraulic and Pneumatic System. Wuhan: Wuhan University of Technology Press (2001), p.47.

[2] Lei Zhao: CFD Simulation of Hydraulic Spool Valve Internal Flow Field in Spool Movement Process. Taiyuan: Taiyuan University of Technology.

[3] Werrmin Fang, Xin Fu: Journal of Zhejiang University (Engineering Science). Vol. 3(2010), p.574.

[4] Yongling Fu, Guobiao Song: Machine Tool & Hydraulics. Vol. 6(2008), p.18.

[5] Zhanahong Han, Jing Wang: Simulation and Application in Fluid Engineering with Fluent. Beijing: Beijing University of Technology Press (2004).