多目标驱动的立式精密磨床床身优化设计方法研究  

Optimization Design Method Research of Vertical Precision Grinder Bed Structure Driven by Multi-objective

作　　者：许春雷[1] 郑清春[1] 杨常青[1] 胡亚辉[1] 

机构地区：[1]天津理工大学复杂系统控制理论及应用重点实验室,天津300384

出　　处：《组合机床与自动化加工技术》2013年第1期23-26,30,共5页Modular Machine Tool & Automatic Manufacturing Technique

基　　金：国家自然科学基金(51105275)

摘　　要：对磨床床身进行轻量化设计,在Solidworks中建立合理的简化模型,然后导入ABAQUS中进行静态分析和模态分析,根据分析结果对床身的结构提出改进方案。安排正交试验对实验结果数据做线性回归,然后进行灵敏度分析找出对床身刚度和重量敏感的结构尺寸。通过中心复合试验设计采取样本建立所选尺寸与床身最大变形量和重量的二次响应面模型。运用理想点法实现对床身最大变形量和重量的双目标优化。结果表明:床身刚度不减小,重量减轻7%。Lightweight design of grinder bed, In Solidworks establish reasonable simplified model, then into ABAQUS to perform static analysis and modal analysis, according to the results of the analysis pro- pose improvement program on the bed structure. Orthogonal test on the result of the experiment data, linear regression, then the sensitivity analysis to identify the body stiffness and weight sensitive structure size. Through a central composite experimental design to take samples to establish the selected size and bed maximum deformation and the weight of the two response surface model. Application of ideal point method to realize the maximum deformation and the weight of the double objective optimization, realize bed stiffness does not reduce,Weight loss 7%.

关 键 词：轻量化 有限元分析 灵敏度分析 优化设计 

分 类 号：TH16[机械工程—机械制造及自动化] TG65[金属学及工艺—金属切削加工及机床]