超高速平面磨床动力学分析

Dynamics Analysis of Super-High Speed Surface Grinding Machine

以超高速平面磨床作为研究对象,基于HYPERMESH建立了各零部件的有限元模型,并在ANSYS中采用弹簧阻尼器单元COMBIN14建立各结合部的动力学模型;建立微进给机构整体有限元模型。采用8种材料组合方案对整机进行模态分析,并得到了前六阶模态,识别出了超高速平面磨床的刚度薄弱环节,为超高速平面磨床的结构设计以及材料选择提供了科学依据。

This paper takes super-high speed surface grinder as an investigated object.The finite element models of its all parts are established by HYPERMESH,and the dynamic ones of the conjoint units are by spring damper COMBIN14,which result in finite element model of the whole micro feed unit.Eight different kinds of material is respectively used to analyze the mode of whole machine tool,fore-six modes come out and the rigidity weakness area are displayed.This investigation providesreference for the structure design and material selection.