基于Workbench的龙门五轴联动机床多种位姿下的静动态分析  

Static and dynamic analysis of high speed live-axis gantry machine with a variety of poses based on Workbench

作　　者：陈怡霖[1,2] 任靖日[1] 李應锡 

机构地区：[1]延边大学工学院机械设计与制造系,吉林延吉133002 [2]韩国忠清北道忠北大学机械工程系,忠清北道清州361763

出　　处：《延边大学学报（自然科学版）》2015年第1期53-56,94,共5页Journal of Yanbian University（Natural Science Edition）

摘　　要：针对龙门机床运行过程中在外载荷影响下因刚度不足而产生的震颤问题,利用Solidworks建立虚拟样机,导入Workbench,并按照实际工况施加预应力对模型进行了结构静力、自由模态和预应力模态分析.结果表明,外载荷使机床的固有频率明显减小,振型变大,因此在实际工作中不可忽视外载荷对机床振动的影响.Gantry machine produces vibration because of the insufficient stiffness and the impact of external load during the process of operation.We use Solidworks to establish virtual prototype,imports to Workbench and prestresses the five-axis machine tool according to actual condition.Then by doing static structure analy-sis,free modal and prestress modal analysis,External load significantly makes the natural frequency decrease and largens the mode shape.Therefore,the impact of external load on machine＇s vibration cannot be underesti-mated in the actual work.

关 键 词：龙门五轴联动机床 位姿 WORKBENCH 静力分析 预应力模态分析 

分 类 号：TH692.9[机械工程—机械制造及自动化]