非線形ばね特性と内部減衰をもつ回転軸系の強制振動 : 1/2次分数調波振動と引込現象

概要

論文の詳細を見る
An elastic rotating shaft supported by ball bearings may have nonlinear spring characteristics due to clearance and internal damping due to friction between the shaft and bearings. In such a system, self-excited oscillation appears in the post-critical region. When the relation ω≒±2P_i holds between the rotating speed ω and a natural frequency P_i, a subharmonic oscillation of order 1/2 may appear. The vibration characteristics in the neighborhood of these resonance points are discussed. It is clarified that an entrainment phenomenon appears due to the interplay between the self-excited oscillation and the forced oscillation. As the result, the self-excited oscillation disappears and only the subharmonic oscillation appears in these resonant points.
社団法人日本機械学会の論文
1992-05-25