Bifurcation and chaos identification on the rubbing rotor
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摘要: 研究了Jeffcott轉子發生動靜件碰摩時的非線性振動特性.根據數值計算的結果,利用時間序列的相空間重構方法,通過相空間的吸引子的形態來刻畫碰摩轉子系統的分叉、擬周期和混沌行為,利用分形維數對分叉、擬周期和混沌信號進行定性的分析.這對定性和定量的判定系統的分叉、擬周期和混沌行為是一個非常有意義.Abstract: The nonlinear characteristics of the lateral vibration of a rub-impact Jeffcott rotor were investigated.Based on the theory of phase space reconstruction,the estimations of the embedding delay and dimension were studied,and the reconstructions of the bifurcation and chaos of the rubbing rotor were completed according to the results of numerical simulation.Then the correlation dimensions of the bifurcation and chaos were estimated.
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Key words:
- rubbing rotor /
- bifurcation /
- chaos /
- phase space reconstruction /
- fractal dimension
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