机械制造与自动化2026，Vol.55Issue(3)：88-94,179,8.DOI:10.19344/j.cnki.issn1671-5276.2026.03.018
铰链式畸变元件总压畸变特性数值仿真及建模
Numerical Simulation and Modeling of Total Pressure Distortion Characteristics of Hinged Distortion Elements
摘要
Abstract
In order to obtain the total pressure loss characteristics of the hinge element downstream,which is the basic unit of the adjustable hinge pressure distortion generator,this research adopts numerical simulation to look into the influence of the hinge element opening angle,aspect ratio,opening hole and Mach number on the total pressure loss characteristics of the down-stream measurement section,and establishes the total pressure distribution model of the downstream section of a single hinge element by random forest regression and BP neural network algorithm.The results show that when the opening angle of component is small,the measurement section of the downstream component presents two symmetrical low-pressure regions,and the distance between low pressure regions increases with the increase of aspect ratio.Also,the increase of aspect ratio and opening angle will add to the total pressure loss of the same section.The opening of the element mainly changes the total pressure loss of the measured section,and is related to the opening angle of the element.Finally,the extent of influence of the geometrical characteristics of elements on the total pressure distribution is in the order of opening angle,aspect ratio and opening rate.关键词
航空发动机/总压畸变/畸变发生器/随机森林回归算法/BP神经网络算法Key words
aeroengine/total pressure distortion/distortion generator/random forest regression algorithm/BP neural network algorithm分类
航空航天引用本文复制引用
袁新渊,贾春强,王英锋,黄鑫源..铰链式畸变元件总压畸变特性数值仿真及建模[J].机械制造与自动化,2026,55(3):88-94,179,8.基金项目
国家科技重大专项项目(J2019-Ⅴ-0017-0112) （J2019-Ⅴ-0017-0112）
