Active Control of Structural Vibration Using Linear Oscillating Actuator (LOA)

In this paper, an iron core type LOA is designed and analyzed electro-magnetically for the application to the active control of structural vibration as an active mass driver. Structural vibration is sensored by the accelerometer attached to the structure and reduced by the optimally controlled motion of active mass of LOA giving anti-phase inertia force to the structure. As a result, LOA is confirmed to be applied to the active control of the structural vibration as an servo actuator by controlling the position of armature accurately.