数控机床主轴单元基本动特性的研究与预测  

PREDICTION OF NC SPINDLE UNITS DYNAMICS

作　　者：赵相松[1] 徐燕申[1] 

机构地区：[1]天津大学机械工程学院

出　　处：《天津大学学报》1999年第4期415-417,共3页Journal of Tianjin University(Science and Technology)

基　　金：天津市21世纪自然科学基金

摘　　要：采用有限元法和实验模态分析方法对用弹性梁理论预测数控机床主轴单元基本动特性的有效性进行研究．理论计算和实验模态分析结果表明，有限元弹性梁理论对具有短粗结构的主轴单元的第一阶模态具有很高的预测精度．The validity of the prediction of NC spindle units dynamics is studied by FEM and experimental modal analysis.A conclusion is reached that the prediction of the first order mode of the spindle unit using elastic beam theory has high precision.It is drawn through the theoretical calculation and modal analysis of a standard spindle unit.This conclusion is beneficial to the determination of optimal functions in the dynamic design of the spindle unit.

关 键 词：主轴单元 有限元法 实验模态分析 数控机床 预测 

分 类 号：TG659[金属学及工艺—金属切削加工及机床]