The Application Of Dynamic Programming Methods In The Hot Strip Rolling Schedule

Shaped plate thickness with the theoretical model of control and on-line study of the practice of the program is a great theoretical value and practical significance of the subject. Taking into account the shape of the rolling thickness coordinate control of the optimization problem can be a point of order as a class of multi-stage decision-making. American mathematician R.E.Bellman proposed method of dynamic programming to solve the problem of this kind of effective way.This paper discusses the methods of dynamic programming theory and its practice in the production of the application, combined with the principle of optimization is given a class of multi-stage decision-making to prove the convergence. This article also describes the theory and shape the development of shape control and research on the analytic theory of shape stiffness of the system. Stiffness in the analytical theory of shape by the establishment and improvement of the dynamic shape of the vector model, based on the model of this paper, the theoretical basis for research to address the hot rolling mill the best shape of the static set point of order, and to propose Rolling in the initial order based on the use of dynamic programming methods to optimize the dynamic adjustment of mathematical model. In this paper, a large mill business for example, through a reduction of two-dimensional decision variable for the differential equations, dynamic programming methods used to adjust the initial rolling order to achieve the thickness of the plate-shaped line of coordinated control to achieve the theory of using technology to raise the level of shape control purposes, of great theoretical significance and practical application.