ACTIVE VIBRATION ATTENUATING ELECTROMAGNETIC EXCITING MACHINE AND ACTIVE VIBRATION ATTENUATION CONTROL METHOD

摘要

PROBLEM TO BE SOLVED: To suppress the increase in vibration propagation by the resonance of an elastic supporting method by vibration isolating rubber, or the like, and to improve the vibration isolation effect of the vibration components existing in a resonance frequency band by realizing the active vibration isolation of direct speed feedback control without changing the natural oscillation frequency of a mechanical vibration isolation and support system.;SOLUTION: The electromagnetic exciting machine 7, which uses a permanent magnet 1 supported in a supporting section 4 by an elastic body 2 for supporting as inertia mass and generates electromagnetic force by the permanent magnet 1 and an electromagnetic coil 3 fixed to a supporting side, is mounted with a detecting means 5 for the transmission force transmitted from the elastic body 2 for supporting the inertia mass of the electromagnetic exciting machine 7 and a detecting means 6 for the velocity of the supporting section 4. A force sensor, displacement sensor, velocity sensor or acceleration sensor is used for the detecting means 5 for the transmission force transmitted from the elastic body 2 and the velocity sensor or acceleration sensor is used for the velocity detecting means 6.;COPYRIGHT: (C)2002,JPO