桥式龙门铣床横梁方案设计及其多目标决策方法  

Design of crossbeam scheme and its multi-objective decision-making method for bridge gantry milling machine

作　　者：邱自学[1] 高志来 任东 崔德友 缪申 QIU Zixue;GAO Zhilai;REN Dong;CUI Deyou;MIAO Shen(School of Mechanical Engineering, Nantong University, Nantong 226019, China;Jiangsu Provincial (Guosheng) Precision CNC Machine Tool Engineering Technology Research Center, Nantong Guosheng Intelligent Technology Group Co., Ltd., Nantong 226003, China)

机构地区：[1]南通大学机械工程学院,江苏南通226019 [2]南通国盛智能科技集团股份有限公司江苏省(国盛)精密数控机床工程技术研究中心,江苏南通226003

出　　处：《计算机集成制造系统》2019年第10期2503-2512,共10页Computer Integrated Manufacturing Systems

基　　金：江苏省科技成果转化专项资金资助项目（BA2015126）~~

摘　　要：为了解决横梁结构方案设计及其优选问题,提出一种基于正交试验设计、模糊层次分析和灰色关联分析的横梁方案设计及其多目标决策方法。根据多因素多水平的横梁结构设计特点,采用正交试验设计确定横梁候选设计方案,获得各方案决策指标值;以静力学性能、抗振性、轻量化和经济指标为主要决策目标建立了横梁设计方案指标体系,采用模糊层次分析法和灰色关联法进行横梁设计方案的多目标决策。将该方法应用于桥式龙门铣床横梁方案的设计与决策,从构建的8种横梁候选设计方案中确定了参数组合为“侧挂式—井—20 mm—线轨”的横梁最优方案。研究结果表明,所提出的横梁方案设计及其多目标决策方法理论性强,决策求解收敛性好,具有较高的工程实用性。To solve the problem of structural scheme design and optimal selection of crossbeam, a design of crossbeam scheme and its multi-objective decision-making method based on orthogonal experimental design, Fuzzy Analytic Hierarchy Process (FAHP) and Grey Relational Analysis (GRA) was proposed. According to the multi-factor and multi-level characteristics of crossbeam structure design, the orthogonal experimental design method was used to determine alternative schemes of crossbeam and obtain the decision-making index value of each scheme. Taking the static mechanical performance, vibration resistance, lightweight performance and economic index as the main decision-making targets, the decision-making index system of crossbeam design scheme was established, and the multi-objective decision making of crossbeam design schemes was carried out by using FAHP and GRA. The method was applied to the design and decision making of the crossbeam scheme of bridge gantry milling machine, so that the optimal crossbeam design scheme with parameters combination “side hanging—well —20mm—linear guideway” was selected from eight established alternative schemes of crossbeam. The study result showed that the design of crossbeam scheme and its multi-objective decision-making method proposed was strongly theoretical and had good convergence of decision solving and high engineering practicability.

关 键 词：桥式龙门铣床 横梁 正交试验设计 模糊层次分析法 灰色关联分析 

分 类 号：TH122[机械工程—机械设计及理论] TG502[金属学及工艺—金属切削加工及机床]