Static Characteristics of Pressure Servo Valve with Asymmetric Nozzle Flapper Under Influence of Valve Core Parameters

葛声宏; 吴河灯; 周振锋; 孙牧; 朱玉川

doi:10.13433/j.cnki.1003-8728.20240035

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Static Characteristics of Pressure Servo Valve with Asymmetric Nozzle Flapper Under Influence of Valve Core Parameters

更新时间：2026-04-23

- Static Characteristics of Pressure Servo Valve with Asymmetric Nozzle Flapper Under Influence of Valve Core Parameters
- Mechanical Science and Technology for Aerospace Engineering Vol. 45, Issue 2, Pages: 351-357(2026)
- 作者机构：
  
  1. 南京航空航天大学机电学院,南京,210016
  2. 中航工业南京伺服控制系统有限公司,南京,210032
- 作者简介：
- 基金信息：
- DOI：10.13433/j.cnki.1003-8728.20240035
  CLC：
- Published：2026
- 稿件说明：
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葛声宏, 吴河灯, 周振锋, et al. Static Characteristics of Pressure Servo Valve with Asymmetric Nozzle Flapper Under Influence of Valve Core Parameters[J]. Mechanical Science and Technology for Aerospace Engineering, 2026, 45(2): 351-357.
DOI：

葛声宏, 吴河灯, 周振锋, et al. Static Characteristics of Pressure Servo Valve with Asymmetric Nozzle Flapper Under Influence of Valve Core Parameters[J]. Mechanical Science and Technology for Aerospace Engineering, 2026, 45(2): 351-357. DOI： 10.13433/j.cnki.1003-8728.20240035.

摘要

为研究阀芯结构参数对非对称喷嘴挡板压力伺服阀静态特性的影响，通过AMESim软件建立非对称压力阀的仿真模型，采用控制变量法，研究参数变化对静态特性影响规律，并对比分析了对称结构与非对称结构压力伺服阀的压力特性。结果表明，重叠量主要影响着死区电流，而阀芯面积比对各静态特性具有显著影响，阀芯直径变化对静态特性基本无影响，径向间隙的存在减小了滞环以及死区电流，对称结构下压力伺服阀具有更大的死区电流以及压力增益。本文建立的AMESim模型及其参数对比分析能够为压力伺服阀的结构设计及优化提供参考。

Abstract

In order to study the influence of the structural parameters of the valve core on the static characteristics of the asymmetric nozzle baffle pressure servo valve. The model for asymmetric pressure valve was established via AMESim software. By controlling the variable method

to study the influence of the parameter changes on the static characteristics

and the pressure characteristics of the symmetric and asymmetric pressure servo valves were compared and analyzed. The results show that the overlap mainly affects the dead zone current

while the valve core area ratio has a significant impact on the various static characteristics. The change in valve core diameter has slight effect on the static characteristics

and the presence of radial clearance reduces the hysteresis and dead zone current. Under symmetrical structure

the pressure servo valve has greater dead zone current and pressure gain. The present AMESim model and its parameter comparison analysis can provide reference for optimizing the design of pressure servo valves.

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