基于6Sigma和目标驱动技术的龙门导轨磨床立柱多目标优化  

Multi-objective Optimization of Gantry Rail Grinder Column Based on 6 Sigma and Goal Driven

作　　者：李想[1] 张疆平 关英俊[1] 

机构地区：[1]长春工业大学机电工程学院,长春130022

出　　处：《机械工程师》2015年第3期15-17,共3页Mechanical Engineer

基　　金：吉林省科技发展计划青年科研基金项目(201201126);吉林省教育厅"十二五"科学技术研究项目(20130131)

摘　　要：针对龙门导轨磨床立柱的结构特点,构建了龙门导轨磨床立柱的有限元模型,并利用基于6Sigm a原则和目标驱动技术的有限元优化分析方法对立柱进行多目标尺寸优化设计。首先利用基于6Sigm a原则的分析方法对立柱模型进行参数灵敏度分析,获得对立柱性能影响较大的参数,将参数作为优化设计的变量;然后利用基于目标驱动技术的多目标优化方法对立柱进行以质量、最大变形量,一阶固有频率为目标函数的多目标优化,在保证立柱最大等效应力不大于初值的前提下,最大变形量减小45.1%,质量减小3.79%,龙门导轨磨床立柱一阶固有频率提高14.6%。结果表明,该方法具有较强的工程实用性。Inallusion to structural characteristics of Gantry rail grinder column, afinite element model of Gantry rail grinder column was built firstly, and then a method which combined 6sigma and goal driven was put forward to optimize Gantry rail grinder column.Parameter sensitivity analysis was carried out based on 6 sigma,and variables which affected the target variable greatly were chosen to be as the design variables.Total mass,deformation and natural frequency of Gantry rail grinder column were established as objective functions and then mulit-objective optimization was carried out, optimization results can be chosen by the priority set before. Compared to the single objective optimization, better solutions for practical engineering problems can be obtained by mulit-objective optimization based on 6 sigma and goal driven.

关 键 词：多目标优化 目标驱动优化技术 6sigma 立柱 

分 类 号：TH237[机械工程—机械制造及自动化]