火箭推进2025，Vol.51Issue(5)：84-92,9.DOI:10.3969/j.issn.1672-9374.2025.05.009
基于差分镜像法的电磁阀动作特性智能识别方法
Intelligent recognition method for solenoid valve action characteristics based on differential image method
摘要
Abstract
The actuation characteristics of solenoid valves under full operating conditions have a crucial impact on the normal functioning of liquid rocket engine systems.To accurately analyze the switching characteristics of liquid rocket engine solenoid valves across all operating conditions,an intelligent identification method for solenoid valve actuation characteristics based on differential mirroring was proposed.The method initially determines the moments of solenoid valve opening and closing actions by examining the step response characteristics of current signals at the instant of power application and removal.Subsequently,the local extremum properties of the second-order differential of the current signal was employed combined with two mirroring operations,to quantitatively analyze the parameters of the solenoidvalve actuation characteristics.Engineering applications demonstrate that this method can achieve 100%identification of thesolenoid valve's switching states and implement a unified standard for quantitative detection of solenoid valve actuation characteristic parameters.This significantly enhances the utilization rate of data resources,improves the efficiency of solenoid valve actuation characteristic detection,and validates the design criteria for the solenoid valves.关键词
液体火箭发动机/电磁阀/动作特性/差分镜像法/智能识别Key words
liquid rocket engine/solenoid valve/action characteristic/differential image method/intelligent identification引用本文复制引用
臧东情,张卫东,秦雷..基于差分镜像法的电磁阀动作特性智能识别方法[J].火箭推进,2025,51(5):84-92,9.
