ACTIVE TYPE VIBRATION CONTROL DEVICE

PROBLEM TO BE SOLVED: To provide an active type vibration control device which can surely execute adaptive control when there is an operation restriction of a vibration generator.SOLUTION: Vibration on an evaluation point 20 for controlling vibration of a control object vibration dif there is no operation restriction of a vibration generator 30 is represented by ideal control vibration y2. A control device 60 includes: an ideal filter coefficient update section 69 which updates an ideal filter coefficient C2in an ideal control signal u2for allowing the vibration generator 30 to generate the ideal control vibration y2, by adaptive control; a coefficient limiter 70 which calculates an actual filter coefficient C1based on the ideal filter coefficient C2and a threshold Thcorresponding to the operation restriction; and a control signal generating section 62 which generates a control signal u1based on the actual filter coefficient C1.SELECTED DRAWING: Figure 1 【課題】加振器に動作制限がある場合に、確実に適応制御を実行できる能動型制振装置を提供する。【解決手段】加振器３０が動作制限を有しないと仮定した場合に抑制対象振動ｄ（ｎ）を制振するための評価点２０における振動を理想制御振動ｙ２（ｎ）とする。制御装置６０は、加振器３０に理想制御振動ｙ２（ｎ）を発生させるための理想制御信号ｕ２（ｎ）における理想フィルタ係数Ｃ２（ｎ）を適応制御により更新する理想フィルタ係数更新部６９と、理想フィルタ係数Ｃ２（ｎ）と動作制限に対応する閾値Ｔｈ（ｌｉｍｉｔ）とに基づいて実フィルタ係数Ｃ１（ｎ）を算出する係数リミッター７０と、実フィルタ係数Ｃ１（ｎ）に基づいて制御信号ｕ１（ｎ）を生成する制御信号生成部６２とを備える。【選択図】図１