Application of improving 4Hi roll deformation theory based on boundary integral equation method
- 作者：YUAN ZhengwenXIAO HongXIE Hongbiao
- 会议时间：2013-06-01
- 关键词：roll deformation ; finite length semi-infinite body ; boundary integral equation method ; finite element method
- 作者单位：National Engineering Research Center for Equipment and Technology of Cold Strip Rolling,Yanshan University,Qinhuangdao 066004,Hebei,China;College of Mechanical Engineering,Yanshan University,Qinhuangda0 066004,Hebei,China
- 母体文献：第五届宝钢学术年会论文集
- 会议名称：第五届宝钢学术年会
- 会议地点：上海
- 主办单位：中国金属学会
- 语种：chi
摘要
In order to improve the accuracy of roll flattening calculation based on semi - infinite body model,a more accurate roll flattening model is proposed in this paper,which is derived based on boundary integral equation method.The displacement fields of the finite length semi - infinite body on left and right sides are simulated by using Finite Element Method ( FEM) and lateral displacement decay functions are established.The new roll flattening model is applied in 4Hi mill deformation calculation and compared with Foppl formula and semi - infinite body model in different roll shifting value and bending force.The results show that the pressure and flattening between rolls calculated by the new model are more precise than other two models,especially near the two roll barrel edges.