Mathematical modeling and linearized analysis of the jet-pipe hydraulic amplifier applied to a servovalve

被引：5
|
作者：
Li, Yuesong [1 ,2 ]
机构：
[1] Henan Univ Sci & Technol, Sch Mechatron Engn, Luoyang 471003, Peoples R China
[2] Collaborat Innovat Ctr Machinery Equipment Adv Mf, Luoyang, Peoples R China
来源：
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART G-JOURNAL OF AEROSPACE ENGINEERING | 2019年 / 233卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Jet-pipe servovalve; hydraulic resistance network; flow continuity equation; absorption effect; valve coefficients;
D O I：
10.1177/0954410017740386
中图分类号：
V [航空、航天];
学科分类号：
08 ; 0825 ;
摘要：
The accurate mathematical model of the jet-pipe hydraulic amplifier, which is the pilot control stage of a jet-pipe servovalve, is very necessary to analyze and control the performance of a jet-pipe servovalve. In this paper, based on the hydraulic bridge's flow balance equations, an improved nonlinear explicit model with the absorption effect is developed. The linearized model and valve coefficients are derived from the nonlinear improve model. To test and verify the improved models, the pressure and flow characteristic model of jet-pipe hydraulic amplifier are verified by the experiment. The results show that the model is approximate to the experimental data. In addition, the influence of structural parameters on performance of jet-pipe hydraulic amplifier is analyzed by simulation.
引用
收藏
页码：657 / 666
页数：10
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