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윤신일(Shinil Yun),박근호(Keunhyo Park),한상보(sangbo Han) 대한기계학회 2003 대한기계학회 춘추학술대회 Vol.2003 No.4
Many types of smart materials and control laws are available to actively adjust the structure from various external disturbances. Usually, a certain type of control laws to activate a specific smart material is well established, but the effectiveness of the control scheme is limited by the choice of the smart materials and the responses of the structure. ER fluid is adequate to provide relatively large control force, on the other hand, the PZT patches are suitable to provide small but arbitrary control forces at any point along the structure. It was found that active vibration control mechanism using ER fluid failed to suppress the excitation off the resonant frequency with loop of the control system. To compensate this additional peak of the closed loop system, PPE control using PZT as an actuator is added to construct a hybrid controller.