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基于自供电磁流变阻尼器的隔震高架桥半主动控制

, PP. 126-133

Keywords: 高架桥,隔震,磁流变阻尼器,自供电,半主动控制

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Abstract:

为解决结构振动控制的能量源问题,提出了一种新型自供电MR阻尼器智能减振系统.该系统由电磁调节式MR阻尼器、齿条齿轮加速器、永磁电机与控制器组成.基于广泛采用的隔震高架桥两自由度线性模型,定义了位移控制性能评价指标,引入了在汽车悬架系统设计中常用的Sky-hook控制策略,对隔震高架桥的减震性能进行了仿真分析.结果表明通过优化设计的参数,自供电MR阻尼器的LQR-Clipped半主动控制与Skyhook控制都可以完全达到其相应的采用外部供电的MR阻尼器的控制效果,且接近理想的主动控制结果.

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