Active Vibration Control of a Building Structure against Earthquakes

Abstract

This paper is concerned with controller design and its experimental evaluation for active vibration control of a building structure in case of earthquake. Taking account of the mode-decomposition for the building structure model, we design an H_∞ controller for active vibration control, where we adopt the linear matrix inequality approach because the standard assumption of H_∞control is not satisfied in this case. Then we evaluate its effectiveness for a five-story building structure via experiments.