The Influence of the Torsional Vibration of Ballscrew on the Stability of NC Servo Drive System.

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  • ＮＣ工作機械のボールねじねじり振動がサーボ系の安定性に及ぼす影響
  • NC コウサク キカイ ノ ボールネジ ネジリ シンドウ ガ サーボケイ ノ アンテイセイ ニ オヨボス エイキョウ

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The Influence of the Torsional Vibration of Ballscrew on the Stability of NC Servo Drive System Jun FUJITA, Sadaji HAYAMA, Minoru HAMAMURA, Yoshiaki KAKINO, Atsushi MATSUBARA and Satoshi OHWAKI The influence of the torsional vibration of ballscrew on the stability of NC servo drive system has been studied in this paper. Theoretical analysis using mathematical model of the baliscrew drive system shows the possibility of the unstability of servo drive system due to the interacted effect of torsional vibration, the dead time and phase lag of the 1st order filter. Experimental analysis using the existing NC drive system shows fairly good coincidence with the calculated results.

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