A set-up model for tandem cold rolling mills

Reddy, N. Venkata; Suryanarayana, GK

doi:10.1016/s0924-0136(01)01007-x

Cited by 36 publications

(10 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…When designing objective functions, the machine model of mills, electrical conditions, etc. should be taken into consideration, to make each equipment give full play of their production capacities without being damaged (Calvo et al, 2010;Venkata Reddy and Suryanarayana, 2001). The construction of the multi-objective function is as follows:…”

Section: Objective Functions Designmentioning

confidence: 99%

Application of case-based reasoning-Tabu search hybrid algorithm for rolling schedule optimization in tandem cold rolling

Yan

Zhang

2018

View full text Add to dashboard Cite

Purpose The purpose of this study is to improve the global optimization ability of the Tabu search (TS) algorithm, and then improve the calculation efficiency and accuracy of rolling schedule in tandem cold rolling. Design/methodology/approach A case-based reasoning–Tabu search hybrid algorithm (CBRTS) has been presented. First, the case-based reasoning technology was adopted to obtain high-quality initial solution and then the TS algorithm was used for global optimization. Findings The optimization effect of CBRTS is compared with that of the traditional TS algorithm, and the analysis result indicates that the CBRTS has a faster convergence rate than TS, and the optimization results are closer to the global optimal. Meanwhile, the rolling schedule calculated by CBRTS is more reasonable, which can increase the production efficiency while giving full play to the capacity of equipment. Originality/value A CBRTS hybrid algorithm is presented. The strong dependence of the TS algorithm on the initial solution has been solved. The rolling schedule multi-objective optimization functions are established. The proposed algorithm is applied in a 1,450-mm tandem cold rolling production line. The improved method can reduce about half the iterations compared with the traditional one.

show abstract

Section: Objective Functions Designmentioning

confidence: 99%

Application of case-based reasoning-Tabu search hybrid algorithm for rolling schedule optimization in tandem cold rolling

Yan

Zhang

2018

View full text Add to dashboard Cite

show abstract

“…However, the tandem rolling dynamics cannot be completely described or simulated with only rolling mechanism models because of some simplification in rolling equations and uncertain parameters [1]. Given this, various mathematical equations based on engineering experiences are developed as an alternative one [2], but the precision is unsatisfactory under disturbances. Some dynamic models are capable of accurately representing the highly non‐linear characteristics from inhomogeneous rolling deformation [3], and the forward slip computation method together with the dynamic friction model can be combined as the supplement [4, 5], but it is not appropriate for the simulation of the coupling dynamics from other mill stand.…”

Section: Introductionmentioning

confidence: 99%

Hybrid intelligent modelling and simulation for cold tandem rolling process

Tie¹,

Ding

2016

IET Control Theory & Applications

View full text Add to dashboard Cite

“…So far, many efforts have been made for metal forming, especially for cold-rolled steel sheets. In 2001, Venkada et al [4] calculated the power consumption of rollers in the cold rolled process. Their results showed that the calculated reduction percentage in thickness of the sheet with 6 shelves roller, was in good agreement with report of Roberts.…”

Section: Introductionmentioning

confidence: 99%

Optimization of Force and Power Imposed on Continuous Tandem Cold Rolling Rollers Using a Multiple-Function Genetic Algorithm

Safari

Moghoomi²

2015

OALib

View full text Add to dashboard Cite

The amount of energy consumed in the production lines such as cold rolled process is one of the fundamental problems in the energy infrastructure of manufacturing sectors. Accordingly, much attention should be directed towards optimizing the power consumption of production lines using reasonable methods. Furthermore, the powers exerted on such equipment must be modified to find an optimized energy consumption level. This study tries to examine the optimization of forces and powers imposed on the continuous tandem cold rolling rollers of metal sheets using MATLAB and genetic algorithm. Firstly, some relationships and calculations of rolled metal sheets are analyzed. Then parameters, such as percentage of thickness reduction, mean pressure, yield stress, power of rollers and exerted torque, are calculated. All the governing relationships are programmed using MATLAB software. Having compared the mentioned two methods, genetic algorithm is used to determine the optimal required power. The results show that the optimized powers generated by genetic algorithm method are in good agreement with experimental observations. Also, the powers of rolling rollers and standard deviations of powers are calculated and, then, the two functions are compared and the optimum point between them is optimized.

show abstract

A set-up model for tandem cold rolling mills

Cited by 36 publications

References 9 publications

Application of case-based reasoning-Tabu search hybrid algorithm for rolling schedule optimization in tandem cold rolling

Application of case-based reasoning-Tabu search hybrid algorithm for rolling schedule optimization in tandem cold rolling

Hybrid intelligent modelling and simulation for cold tandem rolling process

Optimization of Force and Power Imposed on Continuous Tandem Cold Rolling Rollers Using a Multiple-Function Genetic Algorithm

Contact Info

Product

Resources

About