槓桿式勁度可控質量阻尼器(Leverage-type Stiffness Controllable Mass Damper，LSCMD)，藉由改變槓桿支點位置調整質量阻尼器勁度，提高被動調諧質量阻尼器的適應性。槓桿支點可經由不同控制律如線性二次調節器(Linear Quadratic Regulator, LQR)或最小能量控制法(Least Energy Control Method, LECM)來設計控制。然而上述控制律需要正確數值模型及參數，透過計算最佳化指標來進行設計與應用。本研究利用模糊控制貼近人類思考的特性，並配合前人透過LQR及LECM控制之LSCMD實驗數據，歸納而得之模糊控制規則庫，透過多自由度主結構配置半主動模糊控制LSCMD之架構，基於等高結構及底層挑高結構兩種主結構設定，以此探討多自由度主結構之模糊控制效能。本文亦進行上述架構之即時複合實驗驗證，數值模擬與實驗結果相當吻合，驗證半主動模糊控制LSCMD應用於不同主結構時之可行性。

Leverage-type stiffness controlled mass damper (LSCMD) is an effective device for vibration suppression. The damper stiffness can be alert through adjusting the pivot position that is appropriately designed and controlled via different control laws such linear quadratic regulator (LQR) or least energy control method (LECM) to enhance the robustness of the traditional tuned mass damper functionality. However, the above control laws require correct numerical models and parameters, and are designed and applied through on-line or off-line optimization processes. To resolve this problem a real-time fuzzy-controlled semi-active LSCMD is proposed in this study. The fuzzy logic controller (FLC) that closely mimics the characteristics of human thinking is adopted and cooperated with the fuzzy control rules (FCRs) based on observing the hysteresis loops of experimental data of LSCMD controlled by LQR and LECM. The architecture of semi-active fuzzy control LSCMD is configured by multi-degree-of-freedom (MDOF) main structure. Based on the two main structure settings of regular-story and soft-story buildings, the fuzzy control efficiency of MDOF main structure is discussed. This study also carries out the real-time hybrid testing verification of the above structure. The numerical simulation is in good agreement with the experimental results, and the feasibility of applying semi-active fuzzy control LSCMD to different main structures is verified.

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