Self-sensing friction damper
A friction damper, self-sensing technology, applied in building components, earthquake resistance, building types, etc., to achieve the effects of stable performance, good engineering practicability, and broad market application prospects
Active Publication Date: 2020-12-29
DALIAN UNIV OF TECH
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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
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[0027] The specific embodiments of the present invention will be described in detail below in conjunction with the technical solutions and accompanying drawings.
[0028] The specific embodiment of the present invention sees Figure 1 to Figure 5 , it can be seen that the self-sensing friction damper described 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 board group, and the friction electrification lower sliding sub-plate group. Among them, the friction electrification upper sliding sub-plate group is the upper sliding sub-plate 1, the outer layer conductive material 2, and the friction electrification positive plate 3 from top to bottom; the friction electrification sliding main plate group is the friction electrification Negative plate 4, inner conductive material 5, sliding main plate 6, inner conductive material 5, friction electrification negative p...
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The invention belongs to the field of civil engineering disaster prevention and reduction, and discloses a self-sensing friction damper. The self-sensing friction damper is divided into three parts from top to bottom that a triboelectrification upper sliding auxiliary plate group, a triboelectrification sliding main plate group and a triboelectrification lower sliding auxiliary plate group, wherein the triboelectrification upper sliding auxiliary plate group sequentially comprises a sliding auxiliary plate, an outer-layer conductive material and a triboelectrification positive plate from top to bottom; the triboelectrification sliding main plate group sequentially comprises a triboelectrification negative plate, an inner-layer conductive material, a sliding main plate, an inner-layer conductive material and a triboelectrification negative plate from top to bottom; the triboelectrification lower sliding auxiliary plate group is sequentially composed of a triboelectrification positive plate, an outer-layer conductive material and a lower sliding auxiliary plate from top to bottom; and the triboelectrification positive plate and the triboelectrification negative plate are prepared from two materials with remarkable triboelectrification difference. According to the self-sensing friction damper, self-sensing of the friction damper is achieved, and the friction damper is simple in structure and convenient to design and construct.
Description
technical field [0001] The invention belongs to the field of disaster prevention and reduction in 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. Installing dampers is a reliable and effective energy dissipation and vibration reduction technology. As a commonly used damper, friction damper is widely used in energy dissipation buffering, energy dissipation and 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 sliding type long hole bolt node dampers. Compared with other energy-dissipating vibration-absorbing devices, friction dampers have the advantages of simple structure and low cost, can ...
Claims
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IPC IPC(8): E04B1/98E04H9/02
CPCE04B1/98E04H9/021
Inventor 马宁董旭峰杨锐锴
Owner DALIAN UNIV OF TECH