京都大学 · 工学
神尾大輔教授の研究室では、工作機械の高精度化に不可欠な動的誤差、接触剛性、構造的剛性の評価を主な研究テーマとしています。特に、サーボ系と機械的系の動的誤差を分離して評価する手法や、実用的で簡便な測定技術（例：リンクドボールバー）の開発が進んでいます。また、支持部の接触剛性や床面の剛性特性を実現地で評価するための実験的手法の確立にも注力しています。これらの研究は、高精度加工を実現するための構造的・制御的基盤を提供します。
Figures are computed from collected data and may differ slightly.
Dynamic motion errors of machine tools consist of errors in the mechanical system and the servo system. In this study, a simple method to estimate the dynamic mechanical error is proposed to evaluate machine tool structures. The dynamic mechanical error in the low frequency range is estimated from the static deformation due to the driving force, the counter force, and the inertial force. The error in a high-precision machine tool is estimated for comparison with measurements. Two calculation too
The direction dependency of tool-workpiece compliance of machine tool was investigated in three dimensions. The tool-workpiece compliance is defined as the frequency response of the relative displacement between the tool and the workpiece to the cutting force. The tool-workpiece compliance of a vertical type machining center was measured. The direction dependency of the compliance magnitude was discussed using the polar plot. The compliance in the Z (vertical) direction was smaller than that in
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