Simulation and experiments study on water hydraulic pressure relief valve with pilot stage

被引：0
|
作者：
Gong Y. [1 ]
Wang Z. [1 ]
Xu J. [1 ]
Zhang Z. [1 ,2 ]
机构：
[1] Institute of Shipping Electro Mechanics Equipment, Dalian Maritime University
[2] State Key Laboratory of Fluid Power Transmission and Control, Zhejiang University
来源：
Jixie Gongcheng Xuebao/Journal of Mechanical Engineering | 2010年 / 46卷 / 24期
关键词：
Influence parameter; Pilot-operated water hydraulic relief valve; Static and dynamic experiments; Static and dynamic simulation;
D O I：
10.3901/JME.2010.24.136
中图分类号：
学科分类号：
摘要：
The simulation and experiments on pilot-operated water hydraulic relief valve are carried out in our lab. The structure of the main valve port is characterized with high-pressure induct and two-step restrictor. The AMESim model of the valve is built. The influence parameters, such as guide clearance of pilot valve, diameter of damping orifice, volume of sensitive cavity, mass of valve core, and spring stiffness, are investigated through simulation. The static and dynamic experiments are carried out on the water hydraulic comprehensive test-rig to test the valve performance. The simulation and test results are compared and analyzed, which shows that the effect of spool mass can be neglected, but the diameter of damping orifice has great effect. The setting-pressure accuracy is low at small flow rate below 20 L/min, but the high accuracy is achieved over 20 L/min. The experiments about valve dynamic response show that the overshoot of inlet pressure is no more than 30% and the pressure rise time is less than 80 ms. © 2010 Journal of Mechanical Engineering.
引用
收藏
页码：136 / 142
页数：6
相关论文
共 7 条
  • [1] Yang H., Zhou H., Lu Y., Research achievements and developing trends of water hydraulics, China Mechanical Engineering, 11, 12, pp. 1430-1433, (2000)
  • [2] Zhu B., Zhang T., Li Z., Research for water hydraulic component testing system, Chinese Hydraulics and Pneumatics, 1, pp. 8-10, (2002)
  • [3] Paoluzzi R., Borghi M., Milani M., Stationary and dynamic analysis of a water relief valve, Forth JHPS International Symposium, pp. 561-566, (1999)
  • [4] Wang Y., Cao D., Lang J., Water hydraulics and its future, Chinese Hydraulics and Pneumatics, 1, pp. 13-15, (2003)
  • [5] He X., He H., Liu Y., Et al., Numerical simulation on the dynamic characteristics of a two-stage water hydraulic relief valve, Chinese Journal of Mechanical Engineering, 42, 1, pp. 76-80, (2006)
  • [6] Olsson H., Astrom K.J., De-Wit C.C., Et al., Friction models and friction compensation, European Journal of Control, 4, 3, pp. 176-195, (1998)
  • [7] Gong Y., Xie W., Zhou H., Et al., Experimental study on the water hydraulic unloading relief valve, Chinese Hydraulics and Pneumatics, 9, (2005)
1