自捻纱线强力的Weibull分布预测  

The Weibull strength prediction of the self-twist yarn

作　　者：肖志永[1] 崔红[2] 姚兴川 

机构地区：[1]天津宏大纺织机械有限公司,天津300384 [2]盐城工学院纺织服装学院,江苏盐城224000 [3]江苏南纬悦达纺织研究院,江苏盐城224000

出　　处：《河南工程学院学报（自然科学版）》2014年第1期6-10,共5页Journal of Henan University of Engineering：Natural Science Edition

摘　　要：通过实验对自捻纱线不同夹持长度下的断裂强度进行Weibull分布分析,纯腈纶自捻纱断裂强度的线性拟合相关系数的平方R2达到0.92 ～0.98,说明纯腈纶自捻纱的断裂强度符合Weibull分布,可以用Weibull分布来预测自捻纱线的断裂强度.同一种纯腈自捻纱线在不同夹持隔距下的Weibull模量是不同的,120 mm夹持隔距测试有捻区时Weibull模量β最大,表明腈纶自捻纱线的拉伸断裂强度值的离散性最小,其拉伸断裂强度的均匀性和可靠性最高.夹持隔距110 mm时,有捻区拉伸时η值最大,表明此时腈纶自捻纱的平均断裂强度最大.Through the experiment on the analysis of Weibull distribution of the breaking strength of self-twisted yarns in different clamping gauge, it is reached 0.92 - 0.98 for the square of correlation coefficient of linear fitting. It is proved that the breaking strength of the pure acrylic self-twisted yarns follows Weibull distribution, so Weibull distribution can be used to predict the breaking strength of pure acrylic self-twisted yarns. Weibull modules are different in different clamping gauges for the same acrylic self-twisted yams. Weibull modules have β maximum value in 120 mm clamping the twisted gauge and η maximum value in 110 mm clamping the twisted gauge. These two values correspond to the minimum discrete of the breaking strength and the maximum breaking strength average.

关 键 词：自捻纱线 断裂强度 WEIBULL分布 夹持隔距 预测 

分 类 号：TS134.7[轻工技术与工程—纺织材料与纺织品设计]