Investigation on steady-state flow force of spool valve with U-grooves

被引：4
|
作者：
Fang W.-M. [1 ,2 ]
Cheng L.-L. [1 ]
Fu X. [1 ]
Zhou H. [1 ]
Yang H.-Y. [1 ]
机构：
[1] State Key Laboratory of Fluid Power Transmission and Control, Zhejiang University
[2] Artillery Academy
来源：
Zhejiang Daxue Xuebao(Gongxue Ban)/Journal of Zhejiang University (Engineering Science) | 2010年 / 44卷 / 03期
关键词：
Flow field simulation; Steady-state flow force; Three-position six-way valve (3/6 valve); U-groove;
D O I：
10.3785/j.issn.1008-973X.2010.03.029
中图分类号：
学科分类号：
摘要：
It is difficult to accurately predict the steady-state flow force of spool valve with U-grooves by the traditional theoretical formulae of flow force. To resolve the problem, a platform with high-precision experimental apparatus and system was built to investigate the steady-state flow force with a multi-way valve as objective, which aimed at obtaining the characteristics of steady-state flow force in different flow directions and the pressure and flow rate characteristics of valve notch. The flow field in the valve was also simulated with computational fluid dynamic (CFD). Both the experimental and simulation results show that the steady-state flow force with U-grooves tends to be negative, which means that the valve notch tends to be open no matter in single in/out flow direction or in double flow directions. The coupling value of the steady-state flow force in the case of single in/out flow direction of the 3/6 valve is almost the same as that in the case of double flow directions. The simulation results of the steady-state flow force together with the pressure difference matched the experimental results well.
引用
收藏
页码：574 / 580
页数：6
相关论文
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