VX380T数控加工中心工作台拓扑分析及多目标参数优化设计  

Topology Analysis and Multi-objective Optimization Design of VX380T CNC Machining Center Worktable

作　　者：沈佳兴[1,2] 徐平[2] 于英华[2] Shen Jiaxing;Xu Ping;Yu Yinghua(Research Institute of Technology and Equipment for the Exploitation and Utilization of Mineral Resources,Liaoning Technical University,Liaoning Fuxin 123000,China;School of Mechanical Engineering,Liaoning Technical University,Liaoning Fuxin 123000,China)

机构地区：[1]辽宁工程技术大学矿产资源开发利用技术及装备研究院,辽宁阜新123000 [2]辽宁工程技术大学机械工程学院,辽宁阜新123000

出　　处：《机械科学与技术》2019年第12期1847-1853,共7页Mechanical Science and Technology for Aerospace Engineering

基　　金：辽宁省教育厅科学技术研究(创新团队)项目(LN2010045)资助

摘　　要：为使VX380T数控加工中心工作台同时具有优越的静、动态性能和轻量化特点。利用拓扑分析的方法研究工作台截面的最佳载荷传递路径,依据拓扑分析结果设计了工作台的加强筋布局。将新结构工作台的整体质量和最大频响幅值为目标函数,以各加强筋的结构参数为设计变量,以原始工作台的静态性能和前3阶固有频率为约束条件进行多目标参数优化设计。对参数优化后工作台的质量、静动态性能进行对比分析,结果表明,其质量减轻了12.19%的同时,其静动态性能也得到了显著提高,证明了优化设计的可行性和有效性。In order to make the VX380 T CNC machining center worktable have superior static performance, dynamic performance and lightweight features, the optimal load transfer path of the worktable section was studied by the method of topological analysis. Based on the analysis results of the topology, the stiffener layout of the worktable was designed. A multi-objective parameter optimization of the redesigned worktable was carried out. The mass and harmonic response amplitude of the new worktable are taken as optimization objectives, the structural parameters ware taken as design variables, and the static performance and the natural frequencies of the original worktable was constraint condition. Comparing the optimized design result with the original one, the result showed that the worktable mass reduces by 12.19%, and the static and dynamic performance can be improved simultaneously. The feasibility and validity of optimal design are proved.

关 键 词：工作台 轻量化 静态性能 动态性能 拓扑分析 参数优化 

分 类 号：TH122[机械工程—机械设计及理论]