基于单片机模糊控制器的AMD主动控制试验研究

模糊控制是结构主动控制的一种很有前途的控制算法。本文针对顶层设置AMD控制装置的5层钢框架模型结构,首先由已有主动控制训练样本提取了模糊规则;其次,将模糊逻辑推理与单片机技术结合起来,开发了单片机模糊控制器。在此基础上,完成了1∶4缩尺的5层钢框架模型结构的AMD模糊控制模拟地震振动台试验研究。试验结果表明:模糊AMD控制可以有效地减小地震作用下模型结构的反应,对顶层位移反应峰值的控制效果达到50%。本文研究成果可为AMD模糊控制走向工程应用提供参考。

Experimental study on AMD vibration control based on single-chip fuzzy microcomputer

Fuzzy theory is highly promising for active structural control.In this paper,fuzzy rules were generated firstly by learning from examples for a five-storey steel frame with AMD installed on the top floor.Secondly,fuzzy logical theory and single-chip technology were integrated and a single-chip microcomputer fuzzy controller was developed.Lastly,shaking table tests of a 1/4-scale five-story steel frame model with an active mass damper driven by the single-chip microcomputer fuzzy controller were conducted.The test results show that the fuzzy controllers are very effective in reducing the response of model structure under seismic excitation and reductions of 50% in relative displacements can be achieved.The study can provide a foundation for the practical structural control.