A new top-down design method for the stiffness of precision machine tools
作者： Yiguang Shi , Xingyu Zhao , Hongjie Zhang , Yingxin Nie , Dawei Zhang
DOI: 10.1007/S00170-015-7705-Y
关键词:
摘要: This work describes a new top-down design method for the stiffness of precision machine tools that considers entire to guarantee requirements in initial stage. A modelling and matching are presented achieve stiffness. characterisation using coefficients characterising structural parts functional units is proposed. The deformation model established based on multi-body system theory, equations deformations components simultaneous static equilibrium equations, compatibility physical equations. three-direction (3D) obtained by substituting into reflects characteristics tool. Thus, reliability verified experiments. Next, performed confirm reasonable values model. finite element (FEM) used validate proposed method. contribution rate analysed.
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