白噪声荷载作用下的拉索半主动控制研究  

Research on lasso semi-active control under white noise load

作　　者：刘江云 LIU Jiangyun(School of Managenent,Wuhan College,Wuhan 430212,Hubei,China)

机构地区：[1]武汉学院管理学院,湖北武汉430212

出　　处：《工程建设》2022年第7期11-16,共6页Engineering Construction

摘　　要：商业建筑和体育场馆类建筑因其使用场景的特殊要求,对其大跨度穹顶拉索的振动控制要求极高。为研究大跨度拉索在强迫荷载作用下的半主动控制效果,本文利用MR阻尼器构建一套可实现的半主动控制系统,并基于MATLAB环境搭建控制平台,模拟实际工程中的白噪声荷载,研究拉索体系在该荷载作用下的强迫振动。研究表明:MR阻尼器对于白噪声荷载作用下的拉索振动有较好的控制效果,且中点处的减振效果优于被动控制,可运用于大跨度拉索的减振。Due to the special requirements of usage scenarios, the commercial buildings and stadiums have extremely high vibration control requirements to their long-span dome lasso.In order to study the effect of semi-active control of large-span lasso under forced load, a set of achievable semi-active control system is constructed by using MR dampers and a control platform is built based on MATLAB environment to simulate the white noise load in actual engineering and to study the forced vibration of the lasso system under this load.The research shows that MR dampers have better control effect on the vibration of lasso under the action of white noise load, and the damping effect at the midpoint is better than the passive control, which can be applied to the damping of large span lasso.

关 键 词：MR阻尼器 拉索半主动控制 白噪声激励 仿真模拟 

分 类 号：TU311.3[建筑科学—结构工程] TB53[理学—物理]