Short Stroke Control with Gaussian Curve and PSO Algorithm in Plate Rolling Process

作者：Jing Guo Ding; Li Li Qu; Xian Lei Hu; Xiang Hua Liu

来源：Journal of Harbin Institute of Technology, 2013, (04): 93-98.

• plate mill
• short stroke control
• gaussian curve
• PSO
• rolling yields

The precision width control is vital for product quality and production economy in plate width control process,so short stroke control method was used in plate rolling by opening or closing edger gap so as to avoid head end necking.Head end necking on different broadening ratio was analyzed,and sections of different elongations at edger rolling was calculated;based on the law of volume constancy,the adjustment functions were described by parabolic functions.Control curves were developed with three Gaussian curves by means of additional combining;SSC control curve was changed with different weights of those curves,w1effect one-third of SSC length,w2effect two-third of SSC length,w3effect all three parts of SSC length.In order to adjust the amount of weights for precise quantification,PSO algorithm was used to build sufficiency function so as to obtain best rectangular degree by global optimization.Practical applications showed that the method proposed is available to improve the product rolling yields by 1.0%-2.0%and worthy to apply to plate rolling.

• 出版日期2013-8-15
• 单位东北大学