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Viscoelastic damper with intelligent controllable damping force

A viscoelastic damper technology, applied in the field of structural engineering, can solve the problems of reducing the energy dissipation capacity and application range of viscoelastic dampers, and achieve the effect of changing the damping force

Active Publication Date: 2011-12-21
涂建维
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the viscoelastic damper also has its fatal weakness, that is, the viscoelastic material is a temperature-sensitive material. As the temperature rises, the storage modulus of the material drops sharply by several orders of magnitude, and the loss factor also drops rapidly. Seriously reduces the energy dissipation capacity and application range of the viscoelastic damper

Method used

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  • Viscoelastic damper with intelligent controllable damping force
  • Viscoelastic damper with intelligent controllable damping force
  • Viscoelastic damper with intelligent controllable damping force

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with the embodiments and accompanying drawings, but the present invention is not limited.

[0027] The viscoelastic damper with intelligent controllable damping force provided by the present invention has a structure such as Figure 1 to Figure 3 As shown: it is mainly composed of a magnetic assembly, a plug connector, a controller 7 and a sensor 8. Among them: the magnetic component forms a complete closed magnetic circuit, the coil provides magnetic energy input, and the magnetic induction intensity in the magnetic circuit is changed by changing the current in the coil. The bolt connection piece is composed of a bolt connection plate 5 and a bolt connection hole 6, and the bolt connection piece can connect the damper and other structures, thereby exerting the energy dissipation effect of the damper on other structures. The controller 7 is connected to the sensor 8 and the coil winding 4 respectively...

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Abstract

The invention relates to a viscoelastic damper capable of intelligently controlling damping force and discloses a viscoelastic damper capable of adaptively adjusting shearing rigidity and damping. The damper mainly comprises a magnetic component, a controller (7) and a sensor (8), wherein the magnetic component forms a complete closed magnetic circuit, provides magnetic energy input through a coil and changes magnetic flux density in the magnetic circuit by changing current in the coil; and the controller (7) is connected with the sensor (8) and a coil winding (4) of the magnetic component through a data line respectively. A temperature softening effect of the common viscoelastic material is made up by utilizing a rheological effect of a magnetized damping layer, so that reduced energy storage modulus of the viscoelastic material due to temperature rise can be compensated by adding an external magnetic field; and compared with the traditional viscoelastic damper, the damper can intelligently control the damping force according to the need and has a good control effect.

Description

technical field [0001] The invention relates to the field of structural engineering, in particular to a device based on rheological intelligent materials, which is made into intelligently controllable stiffness and damping, and installed on engineering structures to resist dynamic effects such as strong winds and earthquakes. Background technique [0002] The viscoelastic damper can provide stiffness and damping to the structure. It has reliable performance, simple structure, and strong energy dissipation capacity. From the installation of tens of thousands of viscoelastic dampers in the World Trade Center in New York, USA to resist strong winds, viscoelastic dampers have been used in It is used in many buildings, bridges and long-span structures. However, the viscoelastic damper also has its fatal weakness, that is, the viscoelastic material is a temperature-sensitive material. As the temperature rises, the storage modulus of the material drops sharply by several orders of ...

Claims

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Application Information

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IPC IPC(8): F16F9/53
Inventor 涂建维
Owner 涂建维
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