中国机械工程Issue(1)：37-43,7.DOI:10.3969/j.issn.1004132X.2015.01.007
交叉杆并联机床结构参数优化
Structural Parameter Optimization of a Crossbar Parallel Machine Tool
摘要
Abstract
Increasing workspace and improving dexterity are important taskes for the design of par-allel machine tool.On the basis of inverse kinematics,workspace of the crossbar parallel machine tool with constraints was obtained via three-dimensional search method.New Jacobian matrix of the ma-chine was also deduced by using the natural coordinate method.Dexterity distribution of the machine was acquired as well based on the workspace and new Jacobian matrix.Then,the impacts of structur-al parameters on workspace and global dexterity index were analyzed,then least square method was applied to curve fitting and the optimization of these structural parameters were carried out by intro-ducing workspace value index and global dexterity index as the global optimization goals.Compared with the original data,each of them increases by 0.40 and 0.26 times respectively,achieving the aim of mechanism optimization.关键词
交叉杆并联机床/工作空间/新型雅可比矩阵/全域灵巧度指数/结构参数优化Key words
crossbar parallel machine tool/workspace/new Jacobian matrix/global dexterity in-dex/structural parameter optimization分类
机械制造引用本文复制引用
方喜峰,张思崇,许钦桓,汪通悦,刘远伟,陈小岗..交叉杆并联机床结构参数优化[J].中国机械工程,2015,(1):37-43,7.基金项目
江苏省高校自然科学基金资助项目(09KJB460003) （09KJB460003）
江苏省数字化制造技术重点实验室开放基金资助项目(HG-DML-1102) （HG-DML-1102）
江苏省船舶先进设计制造技术重点实验室开放基金资助项目(CJ1201) （CJ1201）
