基于加速度趋近律的高层结构的滑模控制及其鲁棒性分析

Sliding-mode Control of High Buildings Based on the Free Accelerating Reaching Law and Its Robustness Analysis

本文采用加速度趋近律滑模控制算法对多自由度体系的地震响应进行了数字仿真研究。并且将该控制方法与LQR控制方法的控制效果和控制的鲁棒性进行了对比分析。仿真和分析结果表明此控制律的控制效果和鲁棒性均优于LQR控制方法 ,能够有效地减小结构的地震响应 ,同时具有较好的鲁棒性。

Based on the accelerating reaching law, a method of mode-sliding control is presented in this paper. The seismic response of multi-freedom system is investigated in numerical simulation. The performance and robustness of control based on the technique proposed in this paper is compared with the control based on the LQR control principle. The simulation and the analysis demonstrate that the performance and robustness of control principle put forward in this paper is better than the control based on the LQR law. The results indicate that the seismic response is diminished effectively and the robustness of the control is remarkable.This control strategy can be applied in the buildings practically.