Building structure magneto-rheological shock insulation and damping device based on polyurethane urea elastomer

By combining the top support mechanism, seismic isolation mechanism and magnetorheological mechanism, the problems of the existing building structure vibration-absorbing devices have been solved, and the installation complexity and limited adjustment effect of existing building structure vibration-absorbing devices under strong earthquakes or large vibrations have been achieved, multi-stage buffering and magnetic field adjustment have been achieved, and the vibration-absorbing efficiency and stability have been improved.

CN120465608APending Publication Date: 2025-08-12ANHUI POLYTECHNIC UNIV
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Patent Information

Application Number
CN202510884327.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-30
Publication Date
2025-08-12

AI Technical Summary

Technical Problem

When existing building structure vibration damping devices face strong earthquakes or large vibrations, they are complex in installation, unstable structure, and limited adjustment effects, making it difficult to dynamically adjust according to different vibration frequencies and amplitudes, resulting in unsatisfactory vibration damping effects.

Method used

The combination design of the top support mechanism, shock isolation mechanism, magnetorheological mechanism and adjustable damping mechanism is adopted, including a flexible deformation arc frame, a buffering spring and hydraulic cylinder, an adjustable magnetic flow rod, a magnet and a magnetic coil, and dynamic vibration damping is achieved through multi-stage buffering and magnetic field adjustment.

Benefits of technology

The shock absorption effect of the building structure under multi-stage vibration is improved, the stability and adaptability of the device are enhanced, and the precise adjustment of different vibration frequencies and amplitudes is achieved, which improves vibration damping efficiency and stability.

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Abstract

The invention provides a building structure magneto-rheological shock insulation and damping device based on a polyurethane urea elastomer, and relates to the technical field of building structure buffering, the building structure magneto-rheological shock insulation and damping device comprises a jacking mechanism, the jacking mechanism comprises a flexible deformation arc frame, one end of the flexible deformation arc frame is provided with a welding bottom plate, the welding bottom plate is provided with a supporting column, and the supporting column is connected with the flexible deformation arc frame; a butt joint plate is arranged on the supporting column. According to the magneto-rheological mechanism, a magnetic current damping mechanism is formed by the outer surface of the adjustable magnetic current rod through the silica gel protection ring, the magnets and the magnetic coil, and the magnets with positive and negative magnetic fields are installed on the N pole and the S pole of the magnetic coil respectively, so that the adjustable magnetic current rod can be subjected to magnetic field arrangement and control; therefore, the pressure of the drawing rod in the adjustable magnetic flow rod can be adjusted in the adjustable magnetic flow rod, and the buffering and damping effects of the shock isolation mechanism in the actual use process are further improved.
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