アクティブマスダンパーのストローク制約を考慮した極配置アルゴリズムによる実大構造物の制震に関する実験的研究

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  • EXPERIMENTAL STUDY ON SEISMIC RESPONSE CONTROL OF FULL-SCALE STRUCTURE BASED ON POLE ASSIGNMENT ALGORITHM CONSIDERING AMD WITH STROKE LIMITATION
  • アクティブマスダンパー ノ ストローク セイヤク オ コウリョ シタ キョク

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Active mass damper (AMD) systems have been used in actual buildings to reduce vibrations of buildings during strong winds. The AMD systems have a feasibility of controlling buildings even during severe earthquakes. To develop algorithms that can control the AMD within its stroke limitation is an important problem in order to apply the AMD system to seismic response control for severe earthquakes. The algorithm with variable control gain formulated in this paper is based on a pole assignment. In the algorithm, a damping factor of the assigned pole is given as a parameter of the control performance. The parameter is adjusted according to an index associated with activity of the AMD so as to prevent its excessive behavior. A full-scale five-story test structure equipped with an AMD system and an earthquake response generator system was employed. This study demonstrates experimentally the effectiveness of the proposed algorithm in reducing the structural responses and in controlling the AMD within its stroke limitation.

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