Analysis of vertical rolling using double parabolic model and stream function velocity field

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• 作者：Yuan-Ming Liu ; Dian-Hua Zhang ; De-Wen Zhao…
• 关键词：Vertical rolling ; Dog ; bone shape ; Double parabolic model ; Rolling force ; Analytical solution
• 刊名：The International Journal of Advanced Manufacturing Technology
• 出版年：2016
• 出版时间：February 2016
• 年：2016
• 卷：82
• 期：5-8
• 页码：1153-1161
• 全文大小：2,189 KB
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• 作者单位：Yuan-Ming Liu (1)
  Dian-Hua Zhang (1)
  De-Wen Zhao (1)
  Jie Sun (1)
  
  1. State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang, 110819, Liaoning, People’s Republic of China
  
• 刊物类别：Engineering
• 刊物主题：Industrial and Production Engineering
  Production and Logistics
  Mechanical Engineering
  Computer-Aided Engineering and Design
  
• 出版者：Springer London
• ISSN：1433-3015

文摘

Vertical rolling has been widely used in the roughing stand of hot strip rolling to improve the precision of slab width which influences the finished product quality significantly in actual production. Double parabolic dog-bone function model and corresponding velocity and strain rate fields are firstly proposed based on the incompressibility condition and stream function. They are successfully applied to three-dimensional vertical rolling. Using the first variation principle of rigid-plastic material, an analytical solution of slab total power functional in vertical rolling is obtained. Then, the shape parameters and the rolling force are received by minimizing the power functional. The error of shape and power parameters is within 4 % compared with finite element method (FEM) simulation’s result and less than 9.5 % compared with other models’ result.