The bifurcation and chaos of the cracked rotor system are researched by employing the numerical integration method.
采用数值积分方法，对裂纹转子的分岔与混饨特性进行了研究。
Stiffness change has little effect on the critical instability and motion of the cracked-rotor, and the system motion is quasi-period motion.
裂纹转子轴刚度变化对油膜失稳点及油膜失稳之后转子的运动影响不大，转子系统作拟周期运动。
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