Magnetorheological elastomer intelligent vibration absorber used for ships

Abstract

The invention provides a magnetorheological elastomer intelligent vibration absorber used for ships, which comprises an outer shell, a magnetorheological elastomer, a magnetic coil group and an internal iron core. The outer shell, the magnetorheological elastomer, the magnetic coil group and the internal iron core are together distributed on the same concentric circle. The inner surface of the outer shell is tightly connected with the outer surface of the magnetorheological elastomer by a bond. The inner surface of the magnetorheological elastomer is stuck into a whole body with the inside iron core by the bond. The coils are divided into four groups and are respectively twisted on the internal iron core. The invention is prepared by using the characteristic that the magnetic shearing rigidity of the magnetorheological elastomer is changed with the changing of the current, and has the advantages of simple structure, good vibration absorption effect, broad applicable frequency bands(using frequency bands of several HZ to scores of HZ), strong environment adaptive capacity(resisting oil stain and dampness), good stability (the control effect is not reduced after being used for a long period), etc.

Description

Marine Magnetorheological Elastomer Smart Shock Absorber (1) Technical field The present invention relates to a vibration-absorbing device, which is mainly used for vibration and noise reduction of ships, in particular, a marine intelligent vibration-absorbing device based on magnetorheological elastomers. (2) Background technology In order to reduce the impact of ship equipment vibration, the usual practice is to install shock absorbers between the ship equipment and the hull, or to install dynamic vibration absorbers around the equipment and equipment to form a master-slave vibration system. When a vibration absorber is used for vibration reduction, only when the frequency of the exciting force of the equipment is close to or the same as the natural frequency of the vibration absorber, the vibration absorber can generate resonance under the action of the exciting force of the equipment and consume most of the energy of the vibration of the equipment , so as to achieve th...

AI Technical Summary

Problems solved by technology

Both of the above two vibration absorbers have the disadvantage of complex structure, which limits the application of their vibration absorbers

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