中国农机化学报2026，Vol.47Issue(7)：25-31,7.DOI:10.13733/j.jcam.issn.2095-5553.2026.07.004
低频幅三自由度振动筛及筛分性能仿真试验研究
Simulation experimental study of three degrees of freedom vibrating screen with low frequency amplitude and screening performance
摘要
Abstract
To address the common problems of screen hole clogging and low screening efficiency in traditional vibrating screens,a three-degrees-of-freedom vibrating screen with low-frequency amplitude was designed.The vibration screening process was simulated using EDEM software.When when the feeding amount was 0.6 kg,the average screening efficiency of the two-degrees-of-freedom vibrating screen was 1.493 times that of the single-degree-of-freedom screen,while the three-degrees-of-freedom screen achieved efficiencies 2.250 times and 1.507 times higher than those of the single-and two-degrees-of-freedom screens,respectively.As the number of degrees of freedom increased,the screening efficiency improved,with a more pronounced effect observed at higher feeding amounts.A multi-factor orthogonal simulation experiment was conducted to determine the relative importance of factors affecting average screening efficiency.The results indicated that feeding amount,X-axis frequency,Y-axis frequency,screen inclination angle,and Y-axis amplitude were the primary influencing factors.A predictive model equation for average screening efficiency was established,followed by parameter optimization.The optimized parameters were validated through simulation,yielding an average screening efficiency of 0.238 09 kg/s,which closely matched the predicted value.The optimal parameter combination for achieving higher screening efficiency under the given simulation conditions was also identified.关键词
三自由度/振动筛/离散元/仿真试验/筛分效率Key words
three degrees of freedom/vibrating screen/discrete element method/simulation experimental/screening efficiency分类
农业科技引用本文复制引用
龚智强,梁振伟,陈礼群,左希庆..低频幅三自由度振动筛及筛分性能仿真试验研究[J].中国农机化学报,2026,47(7):25-31,7.基金项目
国家自然科学基金资助项目(52275251) （52275251）
浙江省教育厅科研项目(Y202352845) （Y202352845）
湖州市自然科学基金项目(2024YZ55) （2024YZ55）
湖州职业技术学院高层次人才专项课题(2023TS07) （2023TS07）
