Modeling and controller design of a shaking table in an active structural control system
The purpose of this paper is to develop an approach to improve the tracking characteristics of a small-scale shaking table, which is used in an active structural control system. Firstly, the active control experimental system is briefly described. Then, a system dynamic model is constructed, which integrates hydraulic actuator system and a three-floor test structure mounted on the shaking table. Due to low natural frequency and small damping, the small-scale shaking table cannot meet the experimental requirements. Thus, three states control algorithm based on pole-assignment principle is applied for extending the acceleration bandwidth and improving system damping. Lastly, the experimental results prove that the new controller is effective.
modeling shaking table active structural control hydraulic actuator three states control