Magnetorheological elastomer shock absorber

Abstract

The invention discloses a magnetorheological elastomer shock absorber, comprising a fixed outer cylinder, a magnetorheological elastomer, a middle cylinder, a coil, a top cylinder, a piston assembly, a bottom cylinder and a coil fixing ring; the bottom cylinder is connected with one end of the middle cylinder, and the other end of the middle cylinder is connected with the top cylinder; a fixed separator is further mounted between the bottom cylinder and one end of the middle cylinder, and a fixed separator is also mounted between the other end of the middle cylinder and the top cylinder; a small cylindrical cavity is formed between the fixed separators and the magnetorheological elastomer and a piston piece are mounted in the small cylindrical cavity; the bottom cylinder, the middle cylinder, the top cylinder, the magnetorheological elastomer and the piston assembly form a main body; the fixed outer cylinder is mounted outside the main body; the coil is mounted in a coil mounting hole formed in a circular-ring-shaped column of the fixed outer cylinder and the fixed outer cylinder is mounted on a mounting plate; a buffer mounting plate is further mounted on one end of the piston rod and an acceleration sensor is mounted on a lower side of the buffer mounting plate; the magnetorheological elastomer shock absorber is simple in structure, easy to manufacture, convenient to mount and good in shock absorption effect, and can be widely popularized and utilized.

Description

technical field [0001] The invention relates to the technical field of vibration reduction, in particular to the technical field of magneto-rheological elastomer shock absorbers. Background technique [0002] Traditional vibration isolators generally use rubber to dampen vibrations. Since the discovery of magnetorheological fluid materials, the vibration damper has reached a new level, and the vibration damping effect is much better than traditional sensors. But in the initial In the application of magnetorheological fluids, some difficulties have been encountered, such as thickening, precipitation and wear, which have affected the application of magnetorheological fluids in industry. In recent years, a new type of magnetorheological material - magnetic Rheological elastomers can overcome some shortcomings of magnetorheological fluids. Magnetorheological elastomers are solidified by high molecular polymers (such as rubber, etc.) and magnetic particles under the action of an ...

AI Technical Summary

Problems solved by technology

[0002] Traditional vibration isolators generally use rubber to dampen vibrations. Since the discovery of magnetorheological fluid materials, the vibration damper has reached a new level, and the vibration damping effect is much better than traditional sensors. But in the initial In the application of magnetorheological fluids, some difficulties have been encountered, such as thickening, precipitation and wear, which have affected the application of magnetorheological fluids in industry. In recent years, a new type of magnetorheological material - magnetic Rheological elastomers can overcome some shortcomings of magnetorheological fluids. Magnetorheological elastomers are solidified by high molecular polymers (such as rubber, etc.) and magnetic particles under the action of an external magnetic field. They have both magnetorheological materials and The advantages of elastomers have overcome the disadvantages of magnetorheological fluids such as easy precipitation and poor stability. Therefore, it is necessary to design a magnetorheological elastomer shock absorber with good performance. Magnetorheological elastomers generally have shear and extrusion Two working modes, but the effect of the latter is better than that of the former, and the damping effect of the magnetorheological elastomer shock absorber with the latter working mode will also be better

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