梳棉工艺对单纱强力影响的灰色GM(0,N)预测模型

Grey GM(0,N) prediction model of influence of carding process on yarn strength

梳棉工序中刺辊与给棉罗拉、锡林与刺辊、锡林与道夫的线速度比配合不当将会造成纤维的损伤,影响纱线强力。运用灰色关联分析刺辊与给棉罗拉、锡林与刺辊、锡林与道夫的线速度比与单纱强力的关联度,并且建立GM(0,N)单纱强力的预测模型。结果表明:刺辊与给棉罗拉、锡林与刺辊、锡林与道夫的线速度比均影响单纱强力,其关联度分别为0.789 5、0.609 2、0.613 7;GM(0,3)预测模型相对误差超过5.00%,误差不符合精度要求;经残差修正后,GM(0,3)预测模型的相对误差均小于5.00%,再经小误差概率检验残差修正后的GM(0,3)预测模型的精度为二级,模型合格。

The inappropriate speed proportions between licker-in and feed roller,cylinder and licker-in,cylinder and doffer cause damage to fibers in carding process,even influence yarn strength.The correlation degrees between yarn strength and the speed proportions were researched according to grey relational analysis,and GM（0,N） prediction model of yarn strength was also built.The results indicated that the speed proportions were factors affecting yarn strength,whose correlation degrees were respectively 0.789 5,0.609 2 and 0.613 7.GM（0,3） prediction model did not meet the precision requirement because its relative error was more than 5.00%.Relative error of GM（0,3） prediction model was less than 5.00% by residual error correcting.By means of the probability test of minimum error,the precision of the model was up to Grade II,and it was eligible.