一是提出了一种高维随机梅尔·尼科夫推广方法，这一方法使得我们顺利利用合适的噪声扩大系统混沌窗口成为可能。
One is the stochastic extended form of the high-dimension Melnikov method which make it possible to choose proper noise excitation to extend the chaos window of a dynamical system.
随着转子转速和载荷的不断提高以及新型材料的日益推广使用，系统的非线性将更加突出，表现出混沌特性。
With the increasing of rotation speed and load as well as the use of new type material for rotor system, its nonlinearity is outstanding and shows chaotic characteristic.
并将该混沌控制方法推广应用到二维光滑混沌映射系统中，成功实现了该混沌系统中的不稳定周期2轨道的镇定。
A two-dimensional smooth mapping system can be controlled from chaos to a stable period-2 orbit by the nonlinear feedback chaos control method.
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