Adaptive active magnetic liquid vibration damping device and vibration damping method

Abstract

The invention discloses an adaptive active magnetic liquid damping device and a damping method. The adaptive active magnetic liquid damping device includes a shell, a magnetic part, a first electromagnet, a second electromagnet and a current control The housing is made of non-magnetic material, the housing is filled with magnetic liquid, the magnetic part is arranged in the housing and connected with the housing, the first electromagnet is located in the housing, and the first electromagnet is opposite to the magnetic part and spaced apart open, the second electromagnet is arranged in the housing and connected with the housing, the second electromagnet is opposite to and separated from the first electromagnet, the first electromagnet is located between the magnetic part and the second electromagnet, the current controller and the first electromagnet Both the first electromagnet and the second electromagnet are connected to control the directions of the magnetic poles of the first electromagnet and the second electromagnet. The self-adaptive active magnetic liquid vibration damping device of the invention can actively adapt to vibrations of different frequencies, has good vibration damping effect and long service life.

Description

Technical field [0001] The present invention relates to the field of damping techniques, and in particular, to an adaptive active magnetic liquid damping device and an adaptive active magnetic liquid damping method. Background technique [0002] The magnetic liquid damper is relatively high for the inertial force, has the advantages of simple structure, small size, and long life. Due to the special flight environment of the spacecraft, it should minimize its own volume, weight, so the magnetic liquid damper is very suitable for the vibration damping of the low frequency and small amplitude of the long straight object. [0003] In the relevant technique, the magnetic liquid damper is mostly a passive damper damper, which is mostly structurally fixed. The corresponding inherent frequency is not adjustable, does not have an active response to the external vibration, poor damping effect, oscillation cycle Long, and the permanent magnet is prone to collision, resulting in a reduction ...

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Problems solved by technology

[0003] In related technologies, most of the magnetic liquid shock absorbers are passive damping shock absorbers. Most of these shock absorbers have fixed structures, and the corresponding natural frequency cannot be adjusted. Long, and permanent magnets are prone to collisions, resulting in reduced life

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