PROBLEM TO BE SOLVED: To provide an active vibration damping device capable of reducing power consumption.SOLUTION: A natural frequency determined by a spring constant as a ratio of thrust generated on a piston member 30 by an internal pressure of a first liquid chamber 17a changed by deformation of a vibration isolation base 15 and a displacement amount of the piston member 30 generated by the thrust, and a mass of the piston member 30 is determined within a frequency band of vibration as vibration control object in a driving state of an automobile. When an actuator 40 applies vibration substantially equal to the natural frequency to the piston member 30, strong runout can be generated by resonance even when an output of the actuator 40 is small. As the piston member 30 can be vibrated with a comparatively small electromagnetic force, power consumption of the actuator 40 can be reduced.SELECTED DRAWING: Figure 1

    【課題】消費電力を削減できる能動型防振装置を提供すること。【解決手段】防振基体15の変形により変化した第1液室17aの内圧でピストン部材30に生じる推力とその推力によって生じるピストン部材30の変位量との比であるばね定数と、ピストン部材30の質量とにより決定される固有振動数は、自動車の運転状態で防振対象となる振動の周波数帯域内に設定されている。固有振動数に略等しい振動をアクチュエータ40がピストン部材30に与えると、アクチュエータ40の出力が小さくても、共振によって強い振れを生じさせることができる。比較的小さい電磁力でピストン部材30を振動させることができるので、アクチュエータ40の消費電力を削減できる。【選択図】図1


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    Title :

    ACTIVE VIBRATION DAMPING DEVICE


    Additional title:

    能動型防振装置


    Contributors:

    Publication date :

    2016-06-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    F16F SPRINGS , Federn / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES



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