抄録
Many characteristics and evaluative factors of machine-tool dynamics often interact mutually, and competitive and cooperative relations exist between them. In order to improve the product performance of machine tools, and finally optimize it, those relationships should be clarified. In this paper, competitive and cooperative relations between evaluative factors of machine-tool dynamics are analyzed. The main results are as follows. (1) Minimization of the maximum receptance value is established on the Pareto optimum solution set for minimizing both the total weight of the structural members on the static force loop and the static compliance. (2) A competitive relationship between minimization of the maximum receptance value and minimization of the static compliance is reduced by minimizing the ratio of the greatest modal flexibility to the static compliance. (3) Minimization of the ratio of the greatest modal flexibility to the static compliance is cooperative with maximization of the damping ratio.
