Rolling schedule is an important parameter in high strength production of cold tandem rolling process, and the reasonable rolling schedule setting is important to cutting down energy consumption of unit, endurance of product stable and improving flatness as well as surface quality of sheet. Consequently, according to lots of theory research and spot experiment, taking relative balance of rolling force, flatness well of finished sheet and minimal rolling power as the control goal, the multi-object model for high strength sheet is built. Simultaneously, considering that PSO algorithm has shortcomings of initial randomness and premature convergence, the ACPSO algorithm is proposed which takes advantage of periodicity of the chaos motion and the inertial weight is adjust according to premature convergence extent of particle swarm and accommodate value of individual. It can improve convergence speed and accuracy. When the improved PSO algorithm is applied into rolling schedule model, it has good effect in spot experiment and productive practice.
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