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A self-sensing friction damper

A friction damper, self-sensing technology, applied in the direction of building types, buildings, building components, etc., to achieve the effect of simple structure, stable performance, and broad market application prospects

Active Publication Date: 2021-08-06
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to propose a self-sensing friction damper for the existing structural vibration control and health monitoring independent of each other

Method used

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  • A self-sensing friction damper
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  • A self-sensing friction damper

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Embodiment Construction

[0027] The specific embodiments of the present invention are described in detail below with reference to the technical solutions and the accompanying drawings.

[0028] For the specific embodiment of the present invention, see Figure 1 to Figure 5 , it can be seen that the self-sensing friction damper in this embodiment is divided into three parts from top to bottom: the friction electrification upper sliding sub-plate group, the friction electrification sliding main plate group, and the friction electrification lower sliding sub plate group. Among them, the friction electrification upper sliding auxiliary plate group is the upper sliding auxiliary plate 1, the outer conductive material 2, the friction electrification positive plate 3 in order from top to bottom; the friction electrification sliding main plate group is the friction electrification from top to bottom in order Negative plate 4, inner layer conductive material 5, sliding main plate 6, inner layer conductive mate...

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Abstract

The invention belongs to the field of disaster prevention and reduction in civil engineering, and discloses a self-sensing friction damper, which is divided into three parts from top to bottom: a friction electrification upper sliding sub-plate group, a friction electrification sliding main board group, and a friction electrification lower sliding plate group. Slide sub-plate pack. Among them, the friction electrification upper sliding sub-plate group consists of sliding sub-plate, outer conductive material, and friction electrification positive plate from top to bottom; layer of conductive material, sliding main board, inner layer of conductive material, and triboelectric negative plate; the triboelectric lower sliding sub-plate group is composed of triboelectric positive plate, outer layer of conductive material, and lower sliding sub-plate from top to bottom; The triboelectrification positive plate and the triboelectrification negative plate are prepared from two materials with significant differences in triboelectrification. The invention realizes the self-sensing of the friction damper, has a simple structure and is convenient for design and construction.

Description

technical field [0001] The invention belongs to the field of disaster prevention and mitigation of civil engineering, and relates to a self-sensing friction damper capable of realizing the integrated functions of health monitoring and vibration reduction. Background technique [0002] Structural vibration reduction is one of the focuses of disaster prevention and mitigation in civil engineering. Placing dampers is a reliable and effective energy-consuming vibration reduction technique. As a commonly used damper, friction damper is widely used in energy dissipation buffering and energy dissipation shock absorption of bridges and building structures. Traditional friction dampers are divided into Pall type friction dampers, Sumitomo friction dampers, friction shear hinge dampers, and slip-type long-hole bolt node dampers. Compared with other energy-consuming vibration damping devices, friction dampers have the advantages of simple structure and low cost, and can provide large...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04B1/98E04H9/02
CPCE04B1/98E04H9/021
Inventor 马宁董旭峰杨锐锴
Owner DALIAN UNIV OF TECH