数值计算得到了转子系统在特定参数范围内的分叉图，系统存在亚谐波、概周期和混沌等非协调运动。

The diagrams of bifurcation, sub-harmonic, quasi-periodic and chaotic motion with typical parameters are numerically created.

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振子由于受到阻尼的作用，能量不守恒。分析了振子在过阻尼和临界阻尼情况下的非周期衰变运动。

Affected by damping, the energy vibrator is no longer eternally fixed. This article analyses its irregular attenuated movement in the condition of over damping and critical damping.

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目的观察非周期大强度运动训练和推拿对兔膝关节髌韧带生物力学特性的影响。

Objective the purpose of this paper was to investigate the effects of acyclic exercise and manipulation on the biomechanical properties of patellar ligament of rabbits.

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