Extrusion-type intelligent shock isolator with high-frequency shock resistance and low-frequency vibration reduction characteristics

Abstract

The invention discloses an extrusion type intelligent vibration isolator with characters of high frequency impact resistance and low frequency vibration reduction. The extrusion type intelligent vibration isolator comprises an MRE magnetic field closed circuit and an MRE magnetic field closed circuit, wherein the MRG magnetic field closed circuit is composed of an upper cover plate, an MRG magnet yoke rod, an MRG working disc, an MRG bottom disc and an MRG working cylinder, the MRE magnetic field closed circuit is composed of a supporting disc, an MRE magnet yoke rod, a lower cover plate, a lining cylinder, an MRE supporting cylinder and an extrusion type counter electrode ring. The extrusion type intelligent vibration isolator with the characters of high frequency impact resistance and low frequency vibration reduction is jointly formed by the MRG magnetic field closed circuit and the MRE magnetic field closed circuit the extrusion type intelligent vibration isolator can carry out more effective earthquake isolation and reduction when civil engineering and mechanical engineering structures encounter different excitations of low frequency earthquakes and high frequency impact and overcome the shortcomings that the output adjusting range of a traditional rubber vibration isolator is limited, and output is uncontrollable. Compared with an existing intelligent vibration isolator, the extrusion type intelligent vibration isolator is wide in application excitation range, can effectively carry out earthquake isolation and vibration reduction for different excitations of high frequency and low frequency, and the extrusion type design enables the extrusion type intelligent vibration isolator to have the character of larger output under the low frequency excitation.

Description

Technical field [0001] The present invention mainly relates to the technical field of structural vibration isolation and vibration reduction, in particular to an extrusion-type intelligent adjustable vibration isolator based on magnetorheological materials and having high-frequency shock resistance and low-frequency vibration reduction characteristics. Background technique [0002] As one of the new ways of structural vibration control of "softness to overcome rigidity, vibration isolation and energy dissipation", seismic isolation technology has the advantages of simple technology, low cost, and reliable performance. It is the earliest research and application of seismic damping method at home and abroad. Good results have been achieved in the application, but the problems exposed cannot be ignored. For example, the seismic isolation system mainly relies on the flexibility of the rubber isolation layer, and it is not easy to control the displacement response and acceleration res...

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Problems solved by technology

[0005] Technical problem: In view of the technical problems existing in the prior art, the present invention relates to an intelligent shock isolator that unifies different excitations of low-frequency earthquakes and high-frequency shocks for shock isolation and vibration reduction, and overcomes the limited output adjustment range of traditional rubber shock isolators, The defect of uncontrollable output; compared with the existing intelligent shock isolator, the present invention is applicable to a wide excitation range, and can effectively perform shock isolation and vibration reduction for different excitations of high and low frequencies. great feature

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