最大の動剛性を有する静圧エアスピンドルの設計(機械要素,潤滑,工作,生産管理など)

概要

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In this study, we propose a new design method for maximizing the dynamic stiffness of a hydrostatic air bearing spindle. In order to decrease the rms value of dynamic displacement of the spindle against external disturbance forces, we design a hydrostatic air bearing spindle using the following procedure. First, we determine the basic dimension and supply pressure. Next, we determine the radius of radial bearing so as to minimize the static displacement at the point where the external force is imposed. Then, the non-dimensional static stiffness is determined so as to minimize the rms value of the response when the dynamic external force is applied. Finally, we determine the inside groove configuration which provides the static stiffness and the maximum damping ratio at the spindle natural frequency.
社団法人日本機械学会の論文
1997-04-25