Research Of PSO Application In The Scheduling Finishing Of Hot Strip Mills

Set-up calculation of Hot Strip Mills(HSM) is the basic work of the continuous rolling operation and the most important problem of it is how to make the value of press load distribution of each step. The reasonable load distribution can make the control of modern rolling machine implement easily, consequently get a better control results. The study on load distribution of HSM has very important realistic meanings.Flatness and gauge are two important primary criteria in strip process, and recently they are at the front line of current study on strip rolling technology. In this paper, the hot finishing steps are set as the study target, and study on load distribution and set-up calculation on the basis of conventional mathematic models with IPSO is carried out.As a new intelligent optimization algorithm, Particle Swarm Optimization(PSO) has been used widely, and has excellent performance in solving complex questions. There the capability of PSO is analyzed and researched, the basic PSO is improved to increase the convergence speed and the precision of calculation, so the PSO in Weight Gradient Direction namely IPSO is presented. The results of emulation show that IPSO is better than the basic PSO.Based on the rationality of traditional load distribution method, the IPSO is used. And the results optimized by ISPO are better than the experiential one's, the exit thickness, and crown are more feasible, It not only gives more press value to ensure playing equipment ability full in first several steps, but also fit the requirements of the precision of flatness and gauge of the last several steps...