超磁わいアクチュエータを用いたスマート構造による骨組構造物のアクティブ制振に関する研究

概要

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A smart structure was tested for active vibration control of frame structures, in which bending moment of the columns was controlled by giant-magnetostrictive actuators integrated into the columns. The actuators were installed in two stages in the bottom part of the column. Excitation tests were carried out for a 3-story building model of a 3.4 m height and a 1,600 kg total weight in which 8 actuators were installed in each column of the first story. The actuator consisted of a giant-magnetostrictive rod of a 40 mm length and a 20 mm diameter surrounded by a driving coil. Two control strategies including a model matching method and the H^∞ control theory were examined for the smart structure. The tests showed that the smart structure could effectively reduce the responses of the building model, and the two control strategies had almost the same performance.
社団法人日本機械学会の論文
1998-10-25