ER流体を用いた異方性可制御形スクイーズフィルダンパ

概要

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Electrorheological (ER) fluid is applied to a controllable squeeze film damper for stabilizing a flexible rotor system. ER fluid is a class of functional fluid whose yield stress varies according to the applied electric field strength, which is observed as viscosity variation of the fluid. In applying ER fluid to a squeeze film damper, a pair of rings of the damper can be used as electrodes. When the electrodes are divided into a horizontal pair and a vertical one, the squeeze film damper can produce damping force in each direction independently. A prototype of the directionally controllable squeeze film damper was constructed and its performance was investigated in the present work. An artificial neural network was used as a control system for the damper so that it can be controlled even in the case that the charateristics of the ER fluid show strong nonlinearity or vary with time.
一般社団法人日本機械学会の論文
1997-07-25