クリアランス内で衝突を伴うロータの非線形強制振動と自動振動 : 実験と数値シミュレーション

概要

論文の詳細を見る
Oscillations in a rotor system with a radial clearance between the outer ring and the casing are investigated by experiments and numerical simulations. The mathematical model includes collision in the clearance. The following phenomena are found: (1)Various kinds of nonlinear resonance occur. (2)Self-excited oscillation of a forward whirling mode occurs in a wide range above the major critical speed. (3)Entrainment phenomena occur in the resonance ranges of nonlinear forced oscillations. In order to obtain a guideline to rotor design, the influence of bearing damping, rotor unbalance and static lateral force on the occurrence of the nonlinear resonances and self-excited oscillations are investigated.
一般社団法人日本機械学会の論文
1999-08-25