基于牵伸区纤维分布的浮游纤维动态行为模拟  

Simulation of dynamic behavior for floating fiber based on fiber distribution in drafting zone

作　　者：孙娜 朱国庆[4] 刘美娜[1] 王晓 高晓艳[1] SUN Na;ZHU Guoqing;LIU Meina;Wang Xiao;GAO Xiaoyan(Yantai Nanshan University,Yantai,265706,China;Qingdao University,Qingdao,266071,China;Donghua University,Shanghai,201620,China;Suzhou Institute of Fiber Inspection,Suzhou,215000,China)

机构地区：[1]烟台南山学院,山东烟台265706 [2]青岛大学,山东青岛266071 [3]东华大学,上海201620 [4]苏州市纤维检验院,江苏苏州215000

出　　处：《棉纺织技术》2024年第12期27-37,共11页Cotton Textile Technology

基　　金：山东省自然科学青年基金项目(ZR2022QE164)。

摘　　要：为了实现牵伸过程中浮游纤维的动态行为模拟,基于牵伸区浮游纤维与其他纤维的接触关系,并充分考虑了等长纤维和不等长纤维的不同接触情况,模拟了接触纤维对浮游纤维的引导力和控制力,建立了变速点分布的模型,模拟了不同牵伸工艺参数下浮游纤维的变速点分布。结果显示:随着牵伸倍数的增大,变速点分布越来越集中,且逐渐靠近前钳口;随着罗拉握持距的增大,变速点分布越来越分散,且逐渐远离前钳口。该模拟得到的变速点分布与实测值趋势一致,准确度更高,可以用来预测牵伸区浮游纤维的变速点分布,为牵伸工艺数字化、智能化提供可靠的理论依据。In order to simulate the dynamic behavior of floating fibers during drafting process,the guiding force and controlling force of contact fibers were simulated based on the contact relationship between floating fiber and other fibers in the drafting zone,and the contact conditions between equal-length fiber and unequal-length fiber were fully considered.Then a model of accelerated point distribution was established to simulate the accelerated point distribution of floating fibers under different drafting process parameters.The results showed that the distribution of accelerated points became more and more concentrated,and gradually close to the front roller with the increase of draft ratio.The distribution of the accelerated points was more and more dispersed,and gradually away from the front roller with the increase of the gauge length.The accelerated point distribution obtained with the simulation was consistent with the measured value with higher accuracy.It could be used to predict the accelerated point distribution of floating fibers in the drafting zone so as to provide a reliable theoretical basis for the digitalization and intelligence of the drafting process.

关 键 词：等长纤维 不等长纤维 纤维分布 变速点分布 接触关系 

分 类 号：TS104.1[轻工技术与工程—纺织工程]