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.