インパクトダンパを用いたボーリングバーの最適設計に関する研究

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書誌事項

タイトル別名
  • Study on Optimum Design of Boring Bar with Impact Damper
  • インパクト ダンパ オ モチイタ ボーリング バー ノ サイテキ セッケイ ニ

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説明

Dynamic behaviours of impact dampers are nonlinear, and hence sophisticated computations are required when applying them in practice. In the present study, the impact damper is applied to a boring bar in order to improve machining performances, and its dynamic performances and effects are evaluated employing the impulse response method. The responses of the boring bar equipped with an impact damper were simulated at first with use of a digital computer and the transfer functions were computed employing FFT algorithm. Two types of boring bars were manufactured, which are equipped with impact dampers with various masses and clearances. The dynamic characteristics of the boring bars were measured. employing the impulse response method, and stability limits against chatter vibrations were obtained by cutting tests. Good correlations were observed between the simulations and the measurements, and the measured dynamic compliances and the experimental stability limits. It is concluded that the present technique is useful to optimize the mass and the clearance of the impact damper.

収録刊行物

  • 精密機械

    精密機械 46 (12), 1481-1486, 1980

    公益社団法人 精密工学会

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