抑制桥梁结构横向振动的半主动控制方法

Semi-active control method to reduce lateral vibration of bridge structures

研究了桥梁结构的半主动控制问题 ,在算法上采用基于神经网络的模糊控制 ,不需要建立精确的分析模型 ,计算较为简便 ,避免了用多参量建立模糊关系方程的求解困难 ,并与二次最优控制算法进行了对比。数值结果表明 ,提出的半主动控制系统对减小结构的地震响应是有效的。

A semi active seismic control algorithm for bridge structure is studied in this paper.To avoid the difficulty of solving multi parameter of fuzzy relation equation,the fuzzy control arithmetic based on neural network is used,so the accurate analysis model is unnecessary and the computation is also simple.Furthermore,the proposed algorithm is also compared with optimal quadratic algorithm.Numeric results show proposed method is practical and feasible in reducing the structural seismic responses.