对滑移模态方法在结构振动控制中的应用进行了研究 ,简要介绍了多自由度系统切换函数的确定方法 ,推导了基于指数趋近律的控制律表示式 ,讨论了最大控制力受到限制时实际控制力的确定方法。算例结果表明 :本文指数趋近律滑移模态控制方法具有较好的振动控制效果。 The application of sliding mode method in structural vibration control is studied. The method to determine the switching function of multi-degree of freedom system is briefly introduced. The expression of control law based on exponential reaching law is deduced. The maximum control force is discussed. When the actual control of the method of determination. The results of the example show that the method of approaching the law of slip law in this paper has good vibration control effect.