The objective of this study was to reduce vibration by the saturation control.Nonlinear beam dynamic model was established by using Hamilton's principle of minimum potential energy principle.The frequency responding equation of nonlinear beam was solved with the multi-scale method.The nonlinear beam was saturated by adjusting the effective parameters.The vibration of the nonlinear beam was thus suppressed effectively.%主要研究了利用饱和现象降低非线性梁的振动。基于哈密尔顿最小势能原理建立非线性梁的动力学模型，利用多尺度方法求解非线性梁系统的频率响应方程，通过调节有效参数使梁进入饱和状态，梁的振动得到效抑制。
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