罗拉牵伸中须条变细曲线的随机模拟  

A stochastic simulation of the attenuation curve of cotton sliver in the roller drafting process

作　　者：严广松 汤聪 YAN Guangsong;TANG Cong(Institute of Applied Mathematics, Zhengzhou Shengda University, Zhengzhou 451191, China;School of Architectural Engineering, Zhengzhou Shengda University, Zhengzhou 451191, China)

机构地区：[1]郑州升达经贸管理学院应用数学研究所,河南郑州451191 [2]郑州升达经贸管理学院建筑工程学院,河南郑州451191

出　　处：《河南工程学院学报（自然科学版）》2021年第2期10-14,共5页Journal of Henan University of Engineering：Natural Science Edition

基　　金：河南省高等学校重点科研项目(19A540002)。

摘　　要：罗拉牵伸是环锭纺纱的关键装置,牵伸后的须条质量关系到纺纱后续加工的效率与最终产品的质量。为了研究牵伸区须条的变化规律,建立了一个须条结构数学模型,考虑到须条中纤维的长度分布、牵伸罗拉隔距、前后罗拉的表面线速度等参数,在设定变速点为前罗拉钳口时,给出了须条在牵伸区的变细曲线和快速纤维根数曲线。通过对多个牵伸参数配置的模拟,得到了罗拉牵伸须条变细曲线与各个参数之间的关系,为进一步研究罗拉牵伸的规律提供了理论支撑。The roller drafting is a key device in ring-spinning,while the quality of the sliver after drafting directly affects the efficiency of the consequent process and the ultimate products.In order to investigate the variance of the sliver in the drafting zone,a sliver drafting model is established considering the fiber length distribution,the gauge length between two pairs of rollers,and the velocities of the front and back rollers,giving the attenuation curves of the sliver between rollers and the curve for accelerated fibers number when the accelerated point is set to the front roller nip.The simulation is conducted for many parameter configurations,resulting in the relationship between the attenuation curve and the parameters.The simulation offers a better reference for understanding the roller drafting system.

关 键 词：罗拉牵伸 纤维长度分布 变细曲线 随机模拟 

分 类 号：TS111[轻工技术与工程—纺织材料与纺织品设计]