A kind of inversion
magnetic current alter amortisseur,which has application in the absorption of vibration of the building structure and the locomotive cars. It includes the cylinder body,the
piston, the
piston rod which connected to it, the confinement
gasoline device of the both sides of the cylinder body and the cylinder cap, there has
magnetic current alternative liquid in the void of the cylinder body, and institutes the magnetizer that generates the
magnetic field and the energizing coil and the
electromagnet magnetic circuit component which is unitized of the running void, the cylinder body is composed of the
master cylinder, or the
master cylinder and the set
jar, or the
master cylinder and bypass
jar, its character is:Institutes both the energizing coil and the permanent
magnet magnetic circuit, composes the compounded
magnetic circuit with the energizing coil and the permanent
magnetic field, and also institutes the administer void in the
electromagnet circuit, and when the power is
cut, the most of the permanent
magnetic field that generated by the permanent
magnet will pass through the running void, so the amortisseur can work at the great amortization condition. The component of the
electromagnet circuit may set at the pertinent position in terms of the different cylinder body. This kind of amortisseur can joint with the controlled structure, fulfills the semiactivly controlled with the absorption of vibration.