内燃机工程2025，Vol.46Issue(3)：79-87,9.DOI:10.13949/j.cnki.nrjgc.2025.03.009
基于灰色关联分析的柴油机气道结构参数对气道性能的影响
Influences of Diesel Engine Intake Port Structure Parameters on Intake Port Performances Based on Grey Relational Analysis
摘要
Abstract
In order to improve the performance of diesel engine helical intake port,the influences of helical chamber height,intake port eccentricity and intake port deflection angle on airway performance was systematically studied through grey relational analysis.The results show that the airway structural parameters with the strongest influence to the weakest influence on swirl ratio and intake mass are helical chamber height,intake port eccentricity,intake port deflection angle and helical chamber height,intake port deflection angle,intake port eccentricity.When helical chamber height is 5.04 mm and intake port eccentricity is 2.82 mm,the swirl ratio reaches the maximum value of 2.102.Meanwhile,when helical chamber height is 5.04 mm and intake port deflection angle is 5.2°,the intake mass reaches the maximum value of 0.715 g.Through the polynomial approximation algorithm,the explicit expressions of the swirl ratio model and the intake mass model were established.The two models performed well in terms of prediction accuracy and fit.The root mean square errors for the swirl ratio and the intake mass are 0.04 and 0.05,respectively,and the coefficients of determination for the swirl ratio and the intake mass are 0.95 and 0.93,respectively.关键词
柴油机/螺旋进气道/结构参数/灰色关联分析/多项式逼近算法Key words
diesel engine/helical intake port/structural parameters/grey correlation analysis/polynomial approximation algorithm分类
能源与动力引用本文复制引用
包广元,张韦,何超,王东鸽,李加强..基于灰色关联分析的柴油机气道结构参数对气道性能的影响[J].内燃机工程,2025,46(3):79-87,9.基金项目
国家自然科学基金项目(52166007,22362018) （52166007,22362018）
云南省科技厅农业联合专项项目(202301BD070001-077) （202301BD070001-077）
云南省教育厅科学研究基金项目(2024Y605)National Natural Science Foundation of China(52166007,22362018) （2024Y605）
Yunnan Provincial Science and Technology Department Agricultural Joint Project(202301BD070001-077) （202301BD070001-077）
Scientific Research Fund Project of Yunnan Provincial Department of Education(2024Y605) （2024Y605）
