制御性指標に基づくスマート構造のアクチュエータ配置最適化

抄録

This paper proposes an easy-to-use optimization method of actuator location on smart structure evaluating controllability and modal strain energy. Generally, the location of the actuator greatly affects the control performance. In this paper, the controllability Gramian is used as a objective function for PZT actuator location, and it's obtained from a state space equation derived from FE model. Additionally, the modal strain energy obtained from FE model is evaluated as an indicator of optimal actuator location. Particle swarm optimization is used as the algorithm of the optimization. In this paper, an active vibration control system using H-infinity control theory is used to suppress the vibration, and vibration control experiments using the optimized actuator locations are carried out, and the results are argued. As the result, the control system using the optimized actuator location shows high control performance for easy method. From these results, the proposed optimization method is easily and effectively used for suppressing the vibration of the structure.