Research on performance of slide-valve in water hydraulic servo-valve with hydrostatic bearing

Author

Xinhua, Wang ; Jian, Zheng ; Shuwen, Sun ; Wei, Li ; Jiaqing, Chang

Author_Institution

Coll. of Mech. Eng. & Appl. Electron. Technol., Beijing Univ. of Technol., Beijing, China

fYear

2010

fDate

26-28 June 2010

Firstpage

3619

Lastpage

3622

Abstract

In order to optimize the motion characteristics of slide-valve in water hydraulic servo-valve. Hydrostatic bearing technology has been used between valve core and sleeve. The research on performance about the static characteristics of slide-valve in water hydraulic servo-valve with hydrostatic bearing structure and traditional throttle with fixed orifice has been carried. The mathematical model of the pressure-flow characteristics, the pressure sensitivity characteristics and pressure characteristics of servo-valve has been established. Research shows, the application of hydrostatic bearing technology can make the linear relationship of the pressure - flow characteristics of the nozzle-flapper valve maintained, the pressure sensitivity can be maintained constant, but pressure characteristics of servo-valve become worse.

Keywords

hydrostatics; machine bearings; mathematical analysis; motion control; optimisation; pressure control; servomechanisms; hydrostatic bearing; mathematical model; motion characteristics; nozzle flapper valve; pressure characteristics; pressure flow characteristics; pressure sensitivity; slide valve performance; valve core; valve sleeve; water hydraulic servo valve; Educational institutions; Equations; Friction; Mathematical model; Mechanical engineering; Orifices; Servosystems; Sun; Valves; Water; hydrostatic bearing; pressure-flow characteristics; servo-valve; static characteristics; water hydraulic;

fLanguage

English

Publisher

ieee

Conference_Titel

Mechanic Automation and Control Engineering (MACE), 2010 International Conference on

Conference_Location

Wuhan

Print_ISBN

978-1-4244-7737-1

Type

conf

DOI

10.1109/MACE.2010.5535630

Filename

5535630