インピーダンスマッチング指標を用いた柔軟構造物の振動制御 : 受動ダンパと動吸振器の最適調整(機械力学,計測,自動制御)

抄録

This paper is concerned with a new control design methodology for vibration control of flexible structures by the wave control. In the wave control, controllers are usually designed to minimize the reflection coefficient by utilizing the wave analysis. However, because the method is based on the wave analysis, the method has been mainly applied to simple uniform structures. In this paper, to establish a control design method for more complex systems, we propose a control design method based on the impedance matching index, which represents difference of the transfer functions of the closed system and the controller. The index is motivated by the wave analysis and control for uniformly varying ladder networks. Optimal tuning of passive dampers and dynamic absorbers by the impedance matching index is especially considered as a first step for control design. Numerical examples for damped mass-spring systems with auxiliary masses are conducted to show effectiveness of the proposed method.