锻压技术

带收缩因子粒子群优化算法对热轧负荷分配的优化

英文标题：Optimization on hot rolling load distribution by particle swarm optimization algorithm with constriction factor

作者：张汉文仲兆准黄虎

分类号：TP18

出版年,卷(期):页码：2020,45(6):194-199

摘要：

为提高实际生产中的热轧带钢质量及生产效率，建立了兼顾负荷均衡和板形最优的负荷分配模型，采用传统经验法对负荷进行初步分配，并在基本粒子群优化算法中引入收缩因子，提出基于带收缩因子的粒子群优化算法，对初始分配结果进行优化。研究表明，与基本粒子群优化算法相比，收缩因子的引入能够有效地控制粒子的飞行速度，并改善粒子群优化算法的局部搜索能力，增强算法的收敛精度与收敛速度。函数测试结果显示，带收缩因子的粒子群优化算法在3类基准函数中的精度均为最优。负荷分配仿真模拟结果表明，该算法可以很好地满足轧制力和相对凸度的目标需求，体现了带收缩因子的粒子群优化算法的优越性与有效性。

In order to improve the quality of hot rolled strip steel and the efficiency of production in actual production, the load distribution model that took into account both load balance and optimal sheet shape was established, and the load was preliminarily distributed by the traditional empirical method. Then, the constriction factor was introduced into the basic particle swarm optimization (PSO) algorithm, and the particle swarm optimization algorithm with constriction factor was proposed to optimize the initial distribution results. The results show that compared with the basic PSO algorithm, the introduction of constriction factor effectively controls the particle flight speed, improves the local search ability of PSO algorithm, and enhances the convergence accuracy and speed of the algorithm. The function test result shows that the PSO algorithm with the constriction factor has the best accuracy among the three types of benchmark functions. Furthermore, the simulation results of load distribution show that the above algorithm meets the requirements of rolling force and relative convexity very well and shows the superiority and effectiveness of PSO algorithm with constriction factor.

基金项目：

国家自然科学基金资助项目（61304095）

张汉文（1994-），男，硕士研究生 E-mail：535171586@qq.com 通讯作者：仲兆准（1980-），男，博士，副教授 E-mail：nustzzz@163.com

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