Ball Bearing Vibrations : 4th Report, On the Nonlinear Vibrations in Axial Direction

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  • 玉軸受の振動 : 第4報, 軸方向の非線形振動について
  • タマジクウケ ノ シンドウ 4

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Abstract

In the previous papers the authors dealt with the axial harmonic vibrations and the subharmonic vibrations of the order one-half caused by the passing balls. In these papers the stability of the axial motion and the amplitudes of the steady state were discussed in the linear region of the axial spring characteristic. But for the large amplitudes of the axial vibrations the nonlinear phenomena appear. In the present paper, firstly, the nonlinear characteristic in the axial direction of a ball bearing is analyzed and the analytical results have been found in good agreement with the experimental ones. Secondly, the amplitudes of the steady motion at the rotational angular speeds nearly equal to the natural circular frequency of the system are ana1yzed. The various typical response curves calculated from the analysis are compared with those obtained from the experiments. As a result, the nonlinear vibratory phenomena caused by a ball bearing were clarified.

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