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粘弹性阻尼器消能结构基于H_2和H_∞性能优化设计 被引量:5

Optimal Design of Energy Dissipation Systems Added Viscoelastic Dampers Based on H_∞ and H_2 Performances
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摘要 基于H2和H∞性能对粘弹性阻尼器消能结构中阻尼器进行布置,具有一定的优化效果;而针对只有一个薄弱层或某一薄弱层突出的结构,将该层控制输出作为唯一的控制输出,消能减震效果将明显改观.利用Matlab中LMI工具箱和优化工具箱可以方便地确定阻尼器在结构中的优化位置及相应的数量.通过结构响应计算可以合理地选择所需阻尼器的数量.选用一栋10层混凝土框架结构对优化方法进行了验证,非线性时程分析结果表明了其优越性. Certain optimal effect can be obtained by disposing viscoelastic dampers of energy dissipation systems based on H∞ and H2 performance. If a structure has one weak storey, or its one weak storey is distinct, regarding the output of this story as the only output, optimal design effect based on H∞ and H2 performance can be much improved. By using the LMI toolbox and the optimization toolbox of Matlab, the optimal locations and corresponding capacities of dampers can be easily determined. Proper quantity of dampers can be determined through structure response analysis. The procedure has been applied to a 10-storey Reinforced Concrete(RC) frame. According to the earthquake time history analysis results, the advantage of the optimal design methods has been evident.
出处 《湖南大学学报(自然科学版)》 EI CAS CSCD 北大核心 2007年第1期5-8,13,共5页 Journal of Hunan University:Natural Sciences
基金 四川省自然基金项目(03JY029-038-2) 湖南省建设厅资助项目(湘建科(2004)316)
关键词 粘弹性阻尼器 消能减震 优化设计 H2和H∞性能 viscoelastic damper energy dissipation optimal design H ∞ and H2 performances
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参考文献10

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共引文献18

同被引文献30

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