B205 スマート構造を用いたHDDヘッド駆動機構の高周波帯域振動制御(OS4 スマート構造システム1)

概要

論文の詳細を見る
The head positioning accuracy of the hard disk drive should be improved to meet today's increasing performance demands. Vibration suppression of the arm in the hard disk drive is very effective to enhance the servo bandwidth of the head positioning system. In this study, the smart structure is introduced into the hard disk drive to suppress the vibration. First, the tabular PZT actuator is designed, and then the experimental set-up of the smart head actuator is developed by installing the actuators for vibration control on the objective head actuator. Second, the state-space modeling of the system is conducted by system identification approach with the experimental modal analysis for control system design. Next, the vibration controller is obtained by solving the Hoo control problem. Finally, the closed-loop performance is evaluated by simulation and experiment.
一般社団法人日本機械学会の論文
2011-06-28