Nonlinear Spline Finite Element Method for Ribbing of Cold-Rolled Coils  

作　　者：QIN Jian ZHANG Qing-dong HUANG Ke-fu 

机构地区：[1]Mechanical Engineering School, University of Science and Technology Beijing, Beijing 100083, China [2]College of Engineering, Peking University, Beijing 100871, China

出　　处：《Journal of Iron and Steel Research International》2012年第1期36-40,共5页

基　　金：Sponsored by National Natural Science Foundation of China(51075031,50675021)

摘　　要：The ribbing problem has serious influence on the steel product quality, which produces additional shape waves on the surface of uncoiled steel strip on the process of curl. Nonlinear spline finite element method （n-spline FEM） is adopted to establish the relationship between the ribbing height and deflection of additional shape wave, for example, post buckling deformation. The proposed spline FEM is more effective and convenient than traditional finite element method in the buckling analysis. Using the spline FEM, the shape wave caused by the ribbing is calculated, and then the ribbing values can be obtained which are difficult to measure in practice. At the same time, the judgment rule is also given for estimating the strip quality according to the ribbing value.The ribbing problem has serious influence on the steel product quality, which produces additional shape waves on the surface of uncoiled steel strip on the process of curl. Nonlinear spline finite element method （n-spline FEM） is adopted to establish the relationship between the ribbing height and deflection of additional shape wave, for example, post buckling deformation. The proposed spline FEM is more effective and convenient than traditional finite element method in the buckling analysis. Using the spline FEM, the shape wave caused by the ribbing is calculated, and then the ribbing values can be obtained which are difficult to measure in practice. At the same time, the judgment rule is also given for estimating the strip quality according to the ribbing value.

关 键 词：steel strip RIBBING nonlinear spline FEM POST-BUCKLING 

分 类 号：TS186[轻工技术与工程—纺织材料与纺织品设计] TU33[轻工技术与工程—纺织科学与工程]