大型高效数控铣床有限元模态分析  

Modal Analysis of the Large and High Effective CNC Milling Machine

作　　者：王伟伟[1] 翁泽宇[1] 巫少龙[2] 

机构地区：[1]浙江工业大学机电学院,浙江杭州310014 [2]浙江工业大学浙西分校,衢州324006

出　　处：《机床与液压》2005年第6期21-22,36,共3页Machine Tool & Hydraulics

基　　金：浙江省2002年重大科技招标资助项目(2002C11024)

摘　　要：应用ANSYS有限元软件对大型高效数控铣床进行了模态分析。在其三维实体模型的基础上建立了该机床模态分析的有限元模型,通过对模型的求解得出了前九阶固有振动频率和相应的主振型。并在此基础上,指出了机床存在的不足,对此又建立了四种不同的模型并分别进行求解。通过对四种模型所求结果的比较,提供了一种较为合理的结构设计方案。A finite element model was built up based on the 3-D model of the large and high effective milling machine of CNC.The finite element analysis software-ANSYS was applied to the modal analysis of the machine tool.The preceding nine step natural vibration frequencies and its corresponding vibration modes were obtained.The deficiency of the machine tool was pointed out.Four different kinds of models were established towards the deficiency and their calculations were solved.A reasonable scheme was provided through the comparison.

关 键 词：模态分析 机床 结构动态 FEM 

分 类 号：TH122[机械工程—机械设计及理论]