飞剪机结构参数优化设计

Optimal mechanism design of a shearing machine

飞剪机是连续式轧钢机组中重要而复杂的辅助设备,其结构参数设计的好坏直接影响剪切质量。飞剪机结构参数优化设计问题属非线性的多目标优化问题,以模拟退火算法为代表的计算智能方法在求解此类优化问题中体现了一定了优势,本文利用改进的模拟退火算法(Improved Simulated Annealing,ISA)对曲柄连杆式飞剪机结构参数进行优化设计,将整个优化过程分成若干个阶段,根据各个子目标函数优化的状态,采用不同的退火系数和归一化系数,综合考虑多个目标函数和约束条件,通过实例计算表明,该方法可以稳定、有效的获取到满意的优化设计结果。

The shearing machine is a important complex accessory equipment in continue mode rolling mill, its mechanism concerns the shearing quality of steel. The shearing machine mechanism design problem （SMMDP） belongs to muti-objective optimization problem. In this paper, a improved simulated annealing algorithm is adopted to solve the SMMDP, in which the whole optimization process is divided into several states with different normalizing coefficients, the Annealing decrease factor is updated dynamically and multi-objective functions and constraints are considered together. The experiment results show that the simulated annealing algorithm can obtain the superior solution stably and effectively.