モードセンサ・アクチュエータの最適設計と振動制御への応用

概要

論文の詳細を見る
In order to suppress the vibration of large-scale flexible structures, a high precise measurement of vibration and an efficient control is indispensable. This paper discusses about the vibration measurement and control system using the modal sensors/actuators, which are composed of accelerometers as sensors and PZT elements as actuators. In a design of modal sensors, sensor elements are placed on optimal locations obtained from a minimization problem of observation spillover. In a design of modal actuators, a location of PZT elements is optimized by the minimization problem of control spillover, and also the control gain is determined by LQR control theory to consider both a state cost and a control cost. Experimental results using a cantilevered CFRP plate have been demonstrated to verify the validity of the proposed modal sensors/actuators.