【摘要】 为了更加有效的减小受控结构在地震作用下的动力响应,采用在结构中安装磁流变阻尼器的方法,同时运用模糊控制器瞬时而准确的确定磁流变阻尼器控制电流,完成对结构的半主动控制。以磁流变阻尼器所在层在地震作用下的速度响应和结构顶层位移响应作为输入量,以控制电流为输出量,根据抗震规范和实际经验提出了合理的模糊规则。对一个3层钢筋混凝土结构进行了实例分析,并与被动控制结构和无控结构进行了对比,结果表明模糊控制对结构的位移响应和加速度响应,较之被动控制都有更好的控制效果。更多还原

【Abstract】 In order to reduce the dynamic responses of controlled structure under earthquake action more effectively,by using magnetorheological damper installed in the structure,the fuzzy controller was adopted to determine the controlled currents of magnetorheological damper quickly and accurately,then structures are controlled semi-actively. Taking volocity response of the floor at which the magnetorheological damper was instaledl,and structures displacement responses as inputs,and controlled current as output,fuzzy rules are designed reasonably according to seismic code and practical experience. Through a numerical example of a three storeys reinforced concrete structure,and a comparison with passive controlled structure and uncontrolled structure,it can be concluded that both displacement responses and acceleration responses of fuzzy controlled structure are reduced more effectively than those of passive controlled structure.更多还原