农机化研究2026，Vol.48Issue(4)：232-240,9.DOI:10.13427/j.issn.1003-188X.2026.04.028
甘蔗收获机除杂风机导风槽结构参数数值模拟优化
Numerical Simulation and Optimization of Guide Vane Structural Parameters in the Primary Extractor of a Sugarcane Harvester
摘要
Abstract
The impurity removal fan was the key component of the segmented sugarcane harvester,and its performance di-rectly affected the working efficiency of the whole machine.Taking the impurity removal fan of Liugong S718A sugarcane harvester as the research object,the finite element model of the impurity removal fan was established by fan test,reverse modeling and CFD numerical simulation.The number of first-stage guide vanes(N1),the number of second-stage air guide groove(N2)and the axial spacing(L)were taken as the main factors,and the maximum at the outlet of the fan wind speed(v)and total pressure efficiency(η)were taken as the indexes.The structural parameters of the air duct were optimized by single factor analysis and response surface method.Firstly,the single factor analysis was used to deter-mine the optimal performance of the fan when the first-stage guide vanes(N1)was 4-6,the second-stage air guide groove(N2)was 6-8,and the axial spacing(L)was 30-50 mm.Subsequently,response surface analysis was employed to solve the optimal method,and the optimal parameter combination was further obtained:the number of primary air ducts was 4,the number of secondary air ducts was 7,and the axial spacing was 30 mm.The numerical simulation validation showed that the optimized extractor improved the maximum outlet wind speed(v)by 8.86%and the total pressure effi-ciency(η)by 8.39%compared to the original fan.The optimized maximum outlet wind speed(v)reached 34.85 m/s,and the total pressure efficiency(η)was 69.89%.The verification test results showed that the error between the simula-ted and measured values of outlet wind speed,flow rate and power were less than 10%,and the numerical simulation method had high accuracy.关键词
甘蔗收获机/除杂风机/导风槽/结构优化/单因素分析/响应曲面法Key words
sugarcane harvester/primary extractor/guide vane/structural optimization/single-factor analysis/response surface methodology分类
农业科技引用本文复制引用
Chen Xi,Pan Yingchun,Huang Xin,Chen Shaoke,Chen Shuwei,Li Yanzhou..甘蔗收获机除杂风机导风槽结构参数数值模拟优化[J].农机化研究,2026,48(4):232-240,9.基金项目
广西科技重大专项(桂科AA22117005) （桂科AA22117005）
国家重点研发计划项目(2022YFD2301100) （2022YFD2301100）
广西科技重大专项经费资助项目(桂科AA22117007) （桂科AA22117007）
