Pneumatically operated active vibration damping device having air chamber whose volume is controllable

摘要

A pneumatically operated active vibration damping device is disclosed, which comprises: a first and a second mounting member which are spaced apart from each other and are attachable to a two members of a vibration system; an elastic body elastically connecting the first and second mounting member; a working air chamber adapted to apply an oscillating force between the first and second mounting member, based on a periodic change of an air pressure in the working air chamber; and a volume regulator adapted to regulate a volume of the working air chamber.