摘要
本文用数值方法研究带裂纹Jeffcott转子的分岔与混沌振动特性。研究结果表明 ,当裂纹较深时 ,裂纹转子在参数共振转速附近存在丰富的周期、拟周期振动和混沌运动 ;裂纹转子振动进入混沌的途径主要通过二次Hopf分岔实现。这些结论 。
In the paper,behaviors of bifurcation and chaos on a cracked Jeffcott rotor are investigated by means of numerical analysis.It is showed that there are abundant periodic and quasiperiodic vibrations and chaotic motions near parametric resonance on a cracked rotor.The main route to chaos which can be observed on a cracked rotor is connected with two Hopf bifurcations.The results can provide some useful proofs for the diagnosis of cracked rotor.
出处
《振动与冲击》
EI
CSCD
2000年第1期40-42,共3页
Journal of Vibration and Shock
关键词
裂纹转子
分岔
拟周期振动
混沌振动
cracked rotor,bifurcation,quasiperiodic vibration,chaos
