A controllable and intelligent magnetorheological piezoelectric vibration isolation bearing

Abstract

A controllable intelligent magnetorheological piezoelectric vibration isolation support comprises a lower steel plate and an upper cover plate. Magnetorheological liquid is arranged in four grooves inside the lower steel plate. High-magnetic sliding columns are arranged in the grooves. Excitation coils encircle the high-magnetic sliding columns. Meanwhile, a hydraulic telescopic rod is arranged between every two adjacent high-magnetic sliding columns. The tops of the high-magnetic sliding columns are connected with small friction plates. The small friction plates are connected with a large friction plate. The upper portion of a rubber body filled with magnetorheological gels is connected with the large friction plate, and the lower portion of the rubber body is directly connected with the lower steel plate. The upper portion of the large friction plate is connected with the upper cover plate through four rubber laminates. The large friction plate and the upper cover plate bear force stably through an upper force transmission cushion plate, a lower force transmission cushion plate and a supporting steel body filled with piezoelectric stacks. Rubber cushion layers are stuck to the interiors of the two side walls of the upper cover plate. Pressure sensor modules arranged inside the rubber cushion layers are matched with wireless transmission modules arranged on the two sides of the large friction plate. According to the controllable intelligent magnetorheological piezoelectric vibration isolation support, real-time monitoring is achieved, and the vibration isolation support is controlled actively to reset and has the advantages of quick response and high sensitivity.

Description

technical field [0001] The invention relates to a shock-isolation support, in particular to a controllable and intelligent magnetorheological piezoelectric vibration-isolation support. Background technique [0002] For countries like my country, which is one of the most earthquake-prone countries, in order to make buildings and various facilities resist the damage of earthquakes, prevent casualties during earthquakes, and reduce economic losses caused by earthquakes, it is necessary to adopt reasonable seismic design methods and measure. However, from the beginning to the present, the seismic design has been developed all the way from the rough design ideas of "hard resistance" and "increasing the rigidity and stability of buildings" at the beginning to the addition of a series of seismic resistance such as vibration isolation supports and dampers in the 1990s. The structural control method is used to carry out the design ideas of "shock absorption", "energy consumption" and...

AI Technical Summary

Problems solved by technology

[0004] However, for traditional vibration isolation bearings such as rubber bearings, sliding bearings, etc., these types only use the characteristics of different materials to achieve their blocking of seismic waves to reduce damage to the upper structure, and still remain at the In the traditional design idea of ​​shock absorption and energy consumption, there are defects that it is difficult to control, and once damaged, it must be replaced again, and it is impossible to realize real-time monitoring and control of its frictional displacement, and it is impossible to achieve the whole process effect of "monitoring + control + reset". Therefore, the effect of semi-active or active external energy consumption control has not yet been achieved, and there is room for improvement.

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