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随着加工中心产品不断向高精度、高刚度、高速度方向发展，对加工中心主轴部件的动态特性要求也越来越高，因此对加工中心产品主轴部件静、动态特性分析及其结构参数优化研究也显得越来越重要。１ 主轴部件结构简介及梁单元模型建立 图１是本课题研究的卧式加工中心主轴部
With the continuous development of high-precision, high-rigidity and high-speed machining center products, the dynamic characteristics of machining center spindle components are also getting higher and higher. Therefore, the analysis of static and dynamic characteristics and optimization of structural parameters of machining center spindle components Research is also becoming more and more important. 1 spindle component structure profile and beam element model establishment Figure 1 is the subject of the horizontal machining center spindle