摘要
设计制作了一款新型的压电变摩擦阻尼器,并将其作为控制装置,提出了能有效抑制强烈地震激励下建筑结构非线性反应的变增益模糊控制算法,建立了量化因子、比例因子与结构响应之间的关系。考虑地震加速度的影响,对量化因子进行了在线自调整。对受控的3层钢结构进行了非线性地震反应的数值仿真分析,并与其它的控制策略进行比较。结果表明,对于安装有压电变摩擦阻尼器的结构,采用变增益模糊控制算法,能有效抑制建筑结构的非线性地震反应,减少地震对建筑结构的破坏。
A new piezoelectric friction damper is designed and fabricated here.The piezoelectric friction damper is regarded as a control device,a fuzzy control algorithm is proposed for reducing nonlinear seismic response of a 3-story benchmark building.Interactive relationships between structural responses and quantification factors,scaling factor are established,considering the influence of the absolute value of the ground acceleration through the fuzzy controller,the quantification factors are gain-scheduled online.Numerical simulation is carried out for analyzing the nonlinear seismic responses of the controlled 3-story benchmark building.And the simulation results are compared with those form other control strategies.The results show that the fuzzy control can reduce the nonlinear seismic response of the 3-story benchmark building with piezoelectric friction dampers efficiently and minimize the damage in the building structure caused by strong earthquake.
出处
《振动与冲击》
EI
CSCD
北大核心
2008年第10期106-110,120,共6页
Journal of Vibration and Shock
基金
国家自然科学基金资助
项目批准号:19872020
广西研究生教育创新计划资助
项目批准号:2006105930814D05
2008105930814D003
关键词
非线性地震反应
变增益模糊控制
压电变摩擦阻尼器
钢结构
振动控制
nonlinear seismic response
gain-scheduled fuzzy control
piezoelectric friction damper
steel structure
control of vibration
