结构振动控制的指数趋近律滑移模态方法

Sliding Mode Control Based on Index Reaching Law for Structure Control

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。

In this paper, the method for identifying switch function is introduced and the sliding mode control (SMC) methods based on Index Reaching Law are presented. The controllers have no adverse effect when actuators be saturated due to unexpected extreme earthquakes. The simulation results demonstrate that the SMC methods presented are viable and attractive control strategies for seismically excited structures.