地震工程学报2025，Vol.47Issue(5)：1048-1054,7.DOI:10.20000/j.1000-0844.20230314001
执行饱和约束下的建筑物主动减震方法
Active seismic control of buildings with actuator saturation
摘要
Abstract
To mitigate seismic responses of buildings under earthquake excitation,this study considers actuator force constraints and proposes an active control methodology ensuringH performance.First,sensors are deployed on building floors to capture relative displacement and velocity signals.Seismic excitation is characterized as energy-bounded uncontrollable disturb-ances.Based on this framework,a controllable building model is established.Subsequently,damper output force constraints are transformed into a saturation control problem with actuator force amplitude limiting,forming the basis for the development of an active seismic control controller.Finally,through Lyapunov stability analysis,a controller synthesis method simulta-neously ensuring saturation constraints and H performance is derived.Simulated results demon-strate that deploying two actuators,each with a maximum output of 6 kN,at the top and sub-top floors of an 11-story building leads to a reduction of approximately 45％in structural displace-ment and velocity responses under El-Centro earthquake excitation.These findings validate the effectiveness of the proposed approach.关键词
主动减震/执行饱和/H∞性能指标/控制器设计方法Key words
active seismic control/actuator saturation/H∞ performance/controller design method分类
建筑与水利引用本文复制引用
许兰兰..执行饱和约束下的建筑物主动减震方法[J].地震工程学报,2025,47(5):1048-1054,7.基金项目
国家自然科学基金项目(61863021) （61863021）
