西安理工大学学报2017，Vol.33Issue(2)：240-246,7.DOI:10.19322/j.cnki.issn.1006-4710.2017.02.019
印刷机定位故障建模及诊断方法研究
Research on modeling and diagnosis method for location in offset printing
摘要
Abstract
Location faults in offset press always have very strong confidentiality,so it is very difficult to diagnose.A fault modeling and diagnosis method based on the principal component analysis (PCA) was proposed,which consists mainly of three steps First,the feeding deviations of an offset press during printing continuous sheets are obtained in both circumferential and axial directions,and then they are projected into principal component space and residual space,thereby establishing a fault model Second,PSE control limit is calculated to judge whether the locating status is normal or not Finally,the composition of each principal component is determined according to the PCA load diagram,and the distribution feature of each variable under different fault modes is obtained based on the PCA score plot so as to reveal the fault mechanism.The effectiveness of this method in the recognition and analysis of fault was confirmed by experiments.The work can provide a new insight into the diagnosis of location fault in offset press.关键词
纸张定位/主元分析/故障诊断/印刷机Key words
paper location/principal component analysis/fault diagnosis/offset printing分类
机械制造引用本文复制引用
徐卓飞,张海燕..印刷机定位故障建模及诊断方法研究[J].西安理工大学学报,2017,33(2):240-246,7.基金项目
国家自然科学基金资助项目(51305340,51275406) （51305340,51275406）
陕西省自然科学基础研究计划资助项目(2017JQ5012) （2017JQ5012）
