Intelligent diagonal bracing damper based on magnetorheological elastomer

Abstract

The invention discloses a diagonal bracing damper based on a magnetorheological elastomer. The diagonal bracing damper comprises an outer sleeve and an inner cylinder, and a first sleeve and a second sleeve are fixed to the inner side of the outer sleeve; the inner cylinder comprises a guide rod and a third sleeve located on the outer side of the guide rod, a gap is formed between the third sleeve and the guide rod, one end of the third sleeve is inserted between the first sleeve and the second sleeve, and a first magnetorheological elastomer, a second magnetorheological elastomer and a third magnetorheological elastomer are arranged between the first sleeve and the third sleeve in a sleeving mode; a fourth magnetorheological elastomer, a fifth magnetorheological elastomer and a sixth magnetorheological elastomer are arranged between the third sleeve and the second sleeve in the sleeving mode, a seventh magnetorheological elastomer, an eighth magnetorheological elastomer and a ninth magnetorheological elastomer are installed between the second sleeve and the guide rod, and the guide rod is further sleeved with a first coil and a second coil. According to the diagonal bracing damper based on the magnetorheological elastomer, resonance is prevented from being generated when an earthquake occurs, and the response of the structure is effectively reduced.

Description

Technical field [0001] The present invention relates to the field of wind resistance, and more particularly to a bevel damper based on a magnetogenic resilient. Background technique [0002] The supported frame system can provide a large rigidity for the structure, and the bevel damper applied to such a support is based on a power consumption device having a viscoelastic rubber material which can absorb the energy of the building. However, it is a highly effective shock absorbing device to reduce the damage of the earthquake to buildings. It has the characteristics of strong practical, simple structure and high economic efficiency. [0003] The viscoelastic damper was first applied to the aerospace industry to control fatigue damage caused by vibration. It is only used in the past 50 years to use the vibration damping control of civil engineering. The world's first application viscoelastic damper to reduce the civil engineering structure. Vibrating is a high-rise building of the ...

AI Technical Summary

Problems solved by technology

[0004] At present, most dampers used on braces are viscoelastic dampers. The energy dissipation capacity of viscoelastic dampers increases with the increase of excitation frequency. Each damper has its own range of excitation frequencies. Viscoelastic dampers The traditional rubber material is mainly used. Even though the structure has been optimized many times, the shortcoming of fixed rigidity has not been effectively solved. When the seismic frequency is close to the natural frequency of the structure, resonance is easy to occur. At this time, the traditional The sprag damper may not only be difficult to absorb the shock, but may even cause more serious damage

Moreover, the traditional brace damper only has the energy dissipation effect along the damper. If the twist occurs in the plane perpendicular to the damper, the damper often has no effect on dissipating the energy, or even damages it.

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