航空科学技术2025，Vol.36Issue(3)：54-62,9.DOI:10.19452/j.issn1007-5453.2025.03.007
考虑非理想表面的精密滑阀零位内泄漏特性仿真分析研究
Simulation and Analysis of Zero Position Internal Leakage Characteristics of Precision Slide Valves Considering Non-ideal Surfaces
摘要
Abstract
Precision slide valve is widely used in the field of aerospace industry,and its internal leakage characteristics directly affect the system performance and energy efficiency.Accurate prediction of the sliding valve leakage is crucial to optimize the design and improve the product quality.At present,most of the studies of precision slide valve leakage are based on the ideal smooth surface,which ignores the change of assembly interface geometry caused by the machining error,resulting in the low prediction accuracy of the leakage of precision slide valve.This paper proposes the simulation analysis method of the internal leakage characteristics of precision sliding valve considering the non-ideal surface.First,using the Chebyshev/Fourier model as the base function,this study constructed the typical deviation form,including cone shape,barrel shape,banana shape and petal shape;then,it established the slide valve entity with non-ideal surface,extracted the nonideal geometric channel of oil leakage,and analyzed the influence of the deviation coordination surface on the leakage by calculating fluid dynamics(CFD)method;finally,the Kriging agent model of various factors and the leakage in the slide valve is established.The results show that the hourglass shape has the least impact on the leakage in the slide valve,and the barrel shape has the greatest impact on the leakage;the agent model predicts the leakage and improves the prediction efficiency.关键词
精密滑阀/内泄漏/逆向建模/CFD/KrigingKey words
precision slide valve/internal leakage/reverse modeling/CFD/Kriging引用本文复制引用
张泽鹏,唐文斌,闫彤..考虑非理想表面的精密滑阀零位内泄漏特性仿真分析研究[J].航空科学技术,2025,36(3):54-62,9.基金项目
国家自然科学基金(52105559) （52105559）
航空科学基金(2022Z050111001) （2022Z050111001）
西安市科技计划项目(23GXFW0022) National Natural Science Foundation of China(52105559) （23GXFW0022）
Aeronautical Science Foundation of China(2022Z050111001) （2022Z050111001）
Xi'an Science and Technology Plan Project(23GXFW0022) （23GXFW0022）
