A shock absorber device mixed with giant electrorheological fluid damping and metal rubber damping

Abstract

The invention discloses a giant electrorheological fluid damping and metal rubber damping combined damper device. The device comprises an upper board, a lower board, a central damping structure, and metal rubber dampers and spring dampers which are evenly arranged around the central damping structure and are distributed at intervals; the central damping structure comprises an outer barrel part, apiston rod and a bearing part, wherein an inner cavity of the outer barrel part is internally and fully filled with giant electrorheological fluid, and the piston rod is positioned in a ring-shaped circular truncated cone of the outer barrel part; the piston rod sequentially passes through the upper board, the bearing part and the upper end face of the outer barrel part; a piston is nested on thepiston rod; metal rubber is nested on support shafts of the metal rubber dampers; springs are nested on support shafts of the spring dampers; the piston rod is connected with a positive pole of an external power supply, and the outer barrel part is connected with a negative pole of the external power supply. The metal rubber of the damper device provided by the invention plays a damping role in the passive vibration isolation, and a giant electrorheological fluid damper generates a damping force under the condition of energization, so that a damping effect is achieved in semi-active vibrationisolation and active vibration isolation.

Description

technical field [0001] The invention relates to the technical field of shock absorbers, in particular to a hybrid shock absorber device. The invention also relates to a shock absorber device using a single-piston shearing and flowing mixed giant electrorheological fluid damper and a metal rubber damping ring. Background technique [0002] Existing shock absorbers mainly contain the following types. First, for the spring damper, due to the existence of natural vibration, it is easy to transmit intermediate frequency vibration, the damping is too small, and the critical damping ratio is generally only 0.005, so resonance will occur in the range close to the frequency of the equipment. Second, for rubber shock absorbers, due to the existence of self-vibration phenomena, it is easy to transmit intermediate frequency vibrations. Third, for the air damping shock absorber, the disadvantage of the gas-filled shock absorber is that the inflation process is complicated, it is not ea...

AI Technical Summary

Problems solved by technology

First, for the spring damper, due to the existence of natural vibration, it is easy to transmit intermediate frequency vibration, the damping is too small, and the critical damping ratio is generally only 0.005, so resonance will occur in the range close to the equipment frequency

Second, for rubber shock absorbers, due to the existence of self-vibration phenomena, it is easy to transmit intermediate frequency vibrations

Third, for the air damping shock absorber, the disadvantage of the gas-filled shock absorber is that the inflation process is complicated, and it is not easy to maintain. When the cylinder is changed by a large impact from the outside, it cannot work.

Fourth, for a purely passive damping device, its damping is determined, and generally the damping value of the damping device cannot be changed

Fifth, for active or semi-active vibration damping devices, although the damping can be adjusted with the outside world, the vibration isolation effect for high-frequency parts is very poor

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