2010-2-Multi-objective and Satisfactory Optimization Design of Backup Roll Chamfer Parameters for Ho.pdf

2010-2-Multi-objective and Satisfactory Optimization Design of Backup Roll Chamfer Parameters for Ho.pdf

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2010-2-Multi-objective and Satisfactory Optimization Design of Backup Roll Chamfer Parameters for Ho

Multi-objective and Satisfactory Optimization Design of Backup Roll Chamfer Parameters for Hot Strip Mills Guo Defu, Shao Jian, He Anrui,Yang Quan National Engineering Research Center of Advanced Rolling University of Science and Technology, Beijing Beijing, China ustbgdf@163. com Liao zhi, Wang Shende 2250 Hot Strip Plant Hunan Valin Lianyuan IronSteel Co.,Ltd. Loudi, China Abstract— In the hot rolling production, in order to avoid or delay the invalidation of backup roll end, a chamfer transition is often designed at the end of backup roll. But the selection of specific parameters of backup roll chamfer for different width hot strip mills, which do not attract too much attention. In this paper, based on the comprehensive consideration of various factors including contact pressure between work roll and backup roll, and shape control capabilities, the multi-objective and satisfactory optimization model of backup roll chamfer parameters has been established, and optimized computing has been done with simulated annealing genetic algorithm for specific examples, This paper proposes a set of method on the design of backup roll chamfer for different width rolling mills, and provides a theoretical guidance for the practical application. Keywords-hot rolling; backup roll chamfers; multiple objects; satisfactory optimization; simulated annealing genetic algorithm I. II. A. 1 L h R [1] 1 2 Rc Re Lc Le Re hc he Rc Re h Lb Lc Rc Re hch Le he 2 Rc (1) Lc Rc hc Lc Rc [2] 2 2( ) 2R R h Lc c c c (1) Re Le Rc 2009 National High Technology Research and Development Program (863 Program) Fund (2009AA04Z163) 978-1-4244-7739-5/10/$26.00 ?2010 IEEE Le Re he h Rc Re B. Re Le Rc Lc Rc h III. A. (1) [3] rdevq 1 arg 1 maxT et rdevq (2) 1 1 2( [ ] [ ]) 1 1 N N rdevq avgq i avgq i N Ni i avgq[i] i 1 [ ] [ ][ ] 1 K a

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