Braced damper based on magnetorheological elastomer
A magnetorheological elastomer, damper technology, applied in the direction of spring/shock absorber, spring, shock absorber, etc., can solve problems such as damage, difficulty in shock absorption, and achieve the effect of avoiding resonance
Active Publication Date: 2021-03-23
WUHAN UNIV OF TECH
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Problems solved by technology
[0003] At present, the dampers used on the braces are mostly traditional rubber materials. Even if the structure has been optimized many times, the disadvantage of fixed stiffness has not been changed. When the earthquake frequency is close to the natural frequency of the structure, resonance is easy to occur. , at this time, the traditional diagonal brace damper is not only difficult to achieve the shock absorption effect, but will even cause more serious damage
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[0020] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. The components of the embodiments of the application generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.
[0021] Accordingly, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art w...
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The invention relates to the technical field of damping devices, in particular to an inclined strut damper based on magneto-rheological elastomers. The inclined strut damper based on the magneto-rheological elastomers comprises at least two first pull plates arranged from top to bottom in sequence. A second pull plate capable of moving horizontally is arranged between the two adjacent first pull plates. At least one magneto-rheological elastomer assembly is arranged between the second pull plate and each adjacent first pull plate. The magneto-rheological elastomer assemblies are symmetricallyarranged on the upper and lower sides of the second pull plate correspondingly. Each magneto-rheological elastomer assembly comprises one magneto-rheological elastomer, a coil arranged on the magneto-rheological elastomer in a sleeving mode in the horizontal direction and a sleeve arranged on the coil in a sleeving mode in the horizontal direction, the two ends of the magneto-rheological elastomerare connected with the corresponding first pull plates and the second pull plate. The first pull plates, the second pull plate and the sleeves are all made of a ferro-magnetic material. The inclinedstrut damper based on the magneto-rheological elastomers, provided by the invention, can change the natural vibration frequency of its own and prevent occurrence of resonance and reduction of the damping effect when an earthquake happens.
Description
technical field [0001] The present application relates to the field of anti-seismic devices, in particular, to a sprag damper based on a magneto-rheological elastomer. Background technique [0002] The braced frame system can provide greater rigidity for the structure. The braced damper applied to this brace is based on an energy dissipation device with viscoelastic rubber material, which can absorb and consume the energy of the earthquake acting on the building. , so as to reduce the damage to buildings caused by earthquakes, it is an efficient shock-absorbing device, which has the characteristics of strong practicability, simple structure and high economic benefits. [0003] At present, most of the dampers used on the braces are traditional rubber materials. Even if the structure has been optimized many times, the disadvantage of fixed stiffness has not been changed. When the seismic frequency is close to the natural frequency of the structure, resonance is easy to occur. ...
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IPC IPC(8): E04B1/98E04H9/02F16F9/53
CPCE04B1/98E04H9/021F16F9/535
Inventor 孔凡苏小峰李书进
Owner WUHAN UNIV OF TECH