基于响应面法和NSGA-Ⅱ的接线盒仿真优化  

Simulation optimization on junction box based on response surface method and NSGA-Ⅱ

作　　者：叶恒昌 龚红英[1] 张志强 赵江波 Ye Hengchang;Gong Hongying;Zhang Zhiqiang;Zhao Jiangbo(School of Materials Science and Engineering,Shanghai University of Engineering Science,Shanghai 201620,China)

机构地区：[1]上海工程技术大学材料工程学院,上海201620

出　　处：《锻压技术》2023年第4期72-76,共5页Forging & Stamping Technology

基　　金：上海工程技术大学校企产学合作资助项目((19)CL-041);上海工程技术大学高水平高峰学科项目。

摘　　要：在接线盒的成形过程中,为了解不同因素对接线盒成形质量的影响,获得最佳的成形参数,通过Dynaform建立有限元模型,结合Design-Expert软件设计响应面试验,通过试验获得最大减薄率和最大增厚率的多项式回归响应模型,进一步得出虚拟压边力、模具间隙和摩擦因数对工件最大减薄率和最大增厚率的影响程度,利用带精英策略的非支配排序遗传算法(NSGA-Ⅱ)对最大减薄率和最大增厚率进行优化求解,得到最优工艺参数为:压边力为21400 N,模具间隙为1.25 mm,摩擦因数为0.08。最后在Dynaform中进行仿真试验,并结合实际生产进行验证。研究结果为接线盒的实际生产提供了理论基础。In the forming process of junction box,in order to understand the influences of different factors on the forming quality of junction box and obtain the optimal forming parameters,the finite element model was established by Dynaform,and combining with Design-Expert software to design the response surface test,and a polynomial regression response model for maximum thinning rate and maximum thickening rate was obtained by experiments.Then,the influence degrees of virtual blank holder force,die clearance and friction coefficient on the maximum thinning rate and the maximum thickening rate of workpiece were further determined,and the maximum thinning rate and the maximum thickening rate were optimized and solved by the non-dominated sorting genetic algorithm with elitist strategy(NSGA-Ⅱ)to obtain the optimal process parameters as the blank holder force of 21400 N,the die clearance of 1.25 mm and the friction coefficient of 0.08.Simulation experiments were conducted by Dynaform,and the results were validated in the actual production.The study result provides a theoretical basis for the actual production of junction box.

关 键 词：接线盒 响应面法 NSGA-Ⅱ 压边力 模具间隙 摩擦因数 

分 类 号：TG386.1[金属学及工艺—金属压力加工]