沈阳农业大学学报2025，Vol.56Issue(4)：83-92,10.DOI:10.3969/j.issn.1000-1700.2025.04.009
风室环境下基于烟丝运动特征的烟丝模型结构优化
Structural Optimization of Cut Tobacco Model Based on Movement Characteristics of Tobacco in Wind Chamber
摘要
Abstract
[Objective]Aiming at the problems of imperfect structure and poor accuracy of discrete element simulation results of the air chamber tobacco simulation model of ZJ17 Cigarette Making and Tipping Machine Combination,the structural model of tobacco was optimized according to its motion characteristics.[Methods]Tobacco was divided into long tobacco,medium tobacco and short tobacco,and the long tobacco was classified into four categories according to shape,namely,standard long tobacco,Partial thicker long tobacco,Partial thinner long tobacco and the multi-branched long tobacco.Four types of long tobacco,medium tobacco,and short tobacco were sampled and modeled using SOLIDWORKS software,and discrete element simulation was carried out using EDEM software.The SPSS statistical analysis shows that the long tobacco structure is negatively correlated with the position of long tobacco entering the wind chamber,the residence time of long tobacco on band and the suction force of the band on long tobacco,and the correlation coefficients are-0.098,-0.986 and-0.293,respectively.The frequency statistics of long tobacco showed that 8.6%of standard long tobacco,13.1%of Partial thicker long tobacco,13.7%of the Partial thinner long tobacco and 10%of the multi-branched long tobacco were abnormal during motion.[Results]Based on the correlation between the frequency and shape of statistical abnormal long tobacco and motion,a long tobacco structure model was constructed.In the model,the length ratio of standard long tobacco,Partial thicker long tobacco,Partial thinner long tobacco and multi-branched long tobacco is about 2∶3∶3∶2.Introducing the optimized long tobacco model,medium tobacco model and short tobacco model in the wind chamber simulation,the pressure calculation was carried out.The results show that the average accuracy increased by 3%,and the average time saving reached 33.8%.[Conclusion]The tobacco model structure was optimized based on the motion characteristics of tobacco in the wind chamber environment.The optimized model was significantly superior to the original model in terms of accuracy and time,which provided an effective model reference for the tobacco motion simulation.关键词
烟丝/结构模型/模型优化/离散元仿真Key words
tobacco/structural model/model optimization/discrete element simulation分类
轻工纺织引用本文复制引用
李光,徐笙凯..风室环境下基于烟丝运动特征的烟丝模型结构优化[J].沈阳农业大学学报,2025,56(4):83-92,10.基金项目
国家重点研发计划项目(2022YFC2105503) （2022YFC2105503）
河北中烟工业有限责任公司科技项目(HBZY2024A064) （HBZY2024A064）
