BDCD850开坯机机架有限元分析及优化设计  

Finite element analysis and optimization design of BDCD850 breaking down mill frame

作　　者：谢二虎 郭显平 张拓 XIE Erhu;GUO Xianping;ZHANG Tuo(CISDI Equipment Co.,Ltd.,Chongqing 401122,China;Chongqing Key Laboratory for Metallurgical Intelligent Equipment,Chongqing 401122,China)

机构地区：[1]中冶赛迪装备有限公司,重庆401122 [2]冶金智能装备重庆市重点实验室,重庆401122

出　　处：《计算机辅助工程》2024年第4期1-7,共7页Computer Aided Engineering

基　　金：五矿科技创新发展基金(90060302)。

摘　　要：为对开坯机机架进行合理轻量化,分别对危险截面形状和机架整体尺寸进行分析。首先,通过静强度应力分析确定机架的强度、刚度和危险截面位置;然后,以最小化等效应力值为目标,利用子模型分析法和Workbench优化模块对复合圆角尺寸参数进行优化;最后,基于Box-Behnken方法构建响应面模型,利用层次分析法和粒子群算法寻找最优的机架结构参数组合。优化后机架的整体质量减少约4 701 kg,危险截面处最大应力下降约8.845 MPa,优化结果可在保证开坯机机架强度和刚度的基础上降低生产成本。To achieve reasonable lightweighting for the breaking down mill frame,the dangerous section shape and the overall size of the frame is analized.Firstly,the strength,stiffness,and hazardous section position of the frame is determined by static strength stress analysis;then,with the goal of minimizing the equivalent stress value,the sub model analysis method and Workbench optimization module are used to optimize the composite fillet size parameters;finally,a response surface model is constructed based on the Box Behnken method,and the analytic hierarchy process and particle swarm optimization algorithm are used to find the optimal combination of rack structural parameters.The overall weight of the optimized frame decreased by about 4701 kg,and the maximum stress at the dangerous section decreased by about 8.845 MPa.The optimization results can reduce production costs by ensuring the strength and stiffness of the billet opening machine frame.

关 键 词：开坯机机架 响应面模型 轻量化设计 结构优化 有限元 

分 类 号：TG333.5[金属学及工艺—金属压力加工] TB115.1[理学—数学]