Tandem mill scheduling as a two point boundary value problem

✍ Scribed by G.F. Bryant; J.M. Halliday; P.D. Spooner

• Publisher: Elsevier Science
• Year: 1973
• Tongue: English
• Weight: 858 KB
• Volume: 9
• Category: Article
• ISSN: 0005-1098
• DOI: 10.1016/0005-1098(73)90076-9

✦ Synopsis

Schedules for a tandem cold rolling mill may be obtained by solving a constrained, two point boundary value, optimisation problem using conjugate gradient techniques.

Summary--We consider the problem of a tandem cold roiling mill to achieve correct output gauge, and satisfactory shape, and surface finish. The essential process variables are roll force, shape and thermal roll crown. The formulation of the equations for these key variables is described. The scheduling problem is formulated as a constrained two point boundary value problem. This is solved using conjugate gradient and projection techniques developed for optimal control problems. Results showing the improvements which can be made in strip shape and general mill operating conditions, by optimising the schedules, are included and discussed.