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Predicting GM(1,N) Model for the Coefficient of Variation of Hectometer Yarn's Weight 被引量:1

Predicting GM(1,N)Model for the Coefficient of Variation of Hectometer Yarn's Weight
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摘要 The Coefficient of Variation(CV)of hectometer yarn's weight is one of the guidelines to evaluate its intrinsic quality.In the spinning manufacturing,the control of cotton yarn's weight unevenness is accomplished mainly in terms of a spot-check on semi-product and a succedent adjust in process parameters during spinning based on technicians' experience.However,it is theoretically believed among manufacturers that with fixed technical levels and parameters in the spinning process,the quality parameters of assorted cotton have a certain influence on the CV.In order to find out a rule of the influence that assorted cotton has on the CV,a GM(1,N)model,correlated raw cotton's quality parameter with the CV,has firstly been developed according to the modeling theory of grey system,and then been applied in the designing step to predict the CV.It has been approved by practical modeling and validation that the model could fit preferably an accrual CV value,and provide a method of quantitative predicting analysis for textile manufacturers to design cotton yarn's quality. The Coefficient of Variation(CV)of hectometer yarn's weight is one of the guidelines to evaluate its intrinsic quality.In the spinning manufacturing,the control of cotton yarn's weight unevenness is accomplished mainly in terms of a spot-check on semi-product and a succedent adjust in process parameters during spinning based on technicians' experience.However,it is theoretically believed among manufacturers that with fixed technical levels and parameters in the spinning process,the quality parameters of assorted cotton have a certain influence on the CV.In order to find out a rule of the influence that assorted cotton has on the CV,a GM(1,N)model,correlated raw cotton's quality parameter with the CV,has firstly been developed according to the modeling theory of grey system,and then been applied in the designing step to predict the CV.It has been approved by practical modeling and validation that the model could fit preferably an accrual CV value,and provide a method of quantitative predicting analysis for textile manufacturers to design cotton yarn's quality.
作者 李晓峰
机构地区 Department of Control
出处 《Journal of Donghua University(English Edition)》 EI CAS 2010年第3期391-394,共4页 东华大学学报(英文版)
基金 Hunan Provincial Basic Science Foundation of China(No.2007FJ3046) Key Scientific Research Fundof Hunan Provincial Education Department,China(No.07A048)
关键词 cotton yarn coefficient of variation(CV) raw cotton's quality GM(1 N) PREDICTION 棉花纱;变化(CV ) 的系数;未加工的棉花的质量;美国通用汽车公司(1, N ) ;预言;
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