Parallel type vibration isolation buffer based on magneto-rheological technology

Abstract

The invention relates to a parallel vibration isolation buffer based on the magnetic rheomorphism technology, which is composed of a magnetic rheologic elastic body buffer and a magnetic rheologic liquid buffer, which are connected in parallel. The magnetic rheologic elastic body buffer is composed of a connecting rod and a magnetic rheologic elastic body shearing ring; the magnetic rheologic elastic body shearing ring is composed of a magnetic rheologic elastic body, a coil winding and a field core; each of the right side and the left side is provided with a group of coil winding and a group of field core; the field core is composed of two hemicycle iron cores and the magnetic rheologic elastic body is respectively held between the two hemicycle iron cores of each set to form the magnetic rheologic elastic body shearing ring, the two sets of the magnetic rheologic elastic body shearing rings are connected organically by the connecting rod; the magnetic rheologic liquid buffer is arranged between the two sets of magnetic rheologic elastic body shearing rings and is fixed between the upper connecting rod and the lower connecting rod, and is connected with the two sets of magnetic rheologic elastic body shearing rings in parallel structurally. The device can control the structural rigidity and the damp, reduce the impact and vibration on the system from the outside and has the advantages of good controllability, wide dynamic range, high response speed, low power consumption and so on; furthermore the device has strong environmental conformability.

Description

technical field [0001] The invention relates to a shock absorber with variable stiffness and variable damping effectively combined with magnetorheological materials as a working medium. Background technique [0002] The traditional vibration isolation buffer is mainly composed of elastic elements or damping elements, and its essence is to use elastic and damping elements such as metal springs and rubber to moderate and consume vibration. Since the vibration characteristics of the buffer are fixed, it can only perform buffer vibration isolation under the design conditions, and cannot be adjusted in real time according to changes in excitation conditions to achieve the optimal buffer vibration isolation effect, which greatly limits the buffer in real time. Engineering applications under shock and vibration conditions. Although the buffer with rubber as the elastic body has large damping, its load capacity is weak and it has strict requirements on the environment; the biggest ...

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Problems solved by technology

Another example is Chinese patent 200520070319.8, which proposes a buffer using magnetorheological elastomers, which can change the stiffness of the system to a certain extent, but the damping of the system cannot be adjusted

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