Abstract
This paper describes an application of an air-jet actuator for vibration control of a framed structure. The air-jet actuator that works for suppressing only the first vibration mode is used for the purpose of making the vibration control actuator small-sized and lightweight. A conventional active mass actuator is also used for suppressing the remaining higher order vibration modes. In this research, a five-story structure is treated as a controlled object. The reduced mathematical model consisting of the first to fifth vibration modes of the structure is constructed based on the FEM modal analysis. The control law is designed based on the sliding mode control theory, because the actuator has nonlinear dynamic characteristics.
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