Shearing type STF damper

A damper and shear type technology, which is applied in the field of structural vibration reduction, can solve problems such as oil leakage, mismatch between design performance and actual performance, poor damper damping performance, etc., to solve the problem of limited frequency range and energy consumption, Efficient energy consumption effect, solving the effect of a large number of connectors and inconvenient construction

Pending Publication Date: 2021-11-12
SHENYANG JIANZHU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the traditional viscous damper often has various shortcomings such as poor damping performance, oil leakage and design performance and actual performance due to various design and theoretical reasons.

Method used

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  • Shearing type STF damper
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  • Shearing type STF damper

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Embodiment Construction

[0016] In order to make the purpose, features and advantages of the present invention more clear, the following will be combined with the appended Figure 1-3 , and further describe the technical solutions in the embodiments of the present invention.

[0017] A shear type STF viscous damper provided by the present invention comprises an upper connecting plate 1, steel teeth 2, an upper cover 3, a baffle plate 4, a steel sleeve 5, and a steel spacer 6; The steel sleeve 5 is a cuboid, which is integrated with the steel spacer 6 and can be welded; the internal baffle 4 and the sleeve 5 are not a whole, after the steel teeth 2 are put into the interior, adjust the position of the internal baffle Position, and then fixed (welded or bolted) to the side wall of the sleeve. After the baffle plate 4 is fixed, the upper cover 3 is connected (welded or bolted) to the upper part of the steel sleeve 5, and a certain space is left between the upper cover 3 and the baffle plate 4 to facilit...

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Abstract

The invention provides a shearing type STF damper. The shearing type STF damper comprises an upper connecting plate, steel teeth, a steel sleeve, an upper cover, a baffle and a steel spacer. The steel sleeve is provided with a plurality of steel spacers, and a blocking door is welded to the steel sleeve and fixedly connected with the steel spacers. The steel teeth are provided with a plurality of tooth pieces and inserted into gaps of the steel spacers, baffles used for limiting the steel teeth are arranged on the upper portions of the steel spacers, and the baffles are fixedly connected with the steel sleeve. The upper cover is fixedly connected with the top end of the steel sleeve; the waist of the upper cover is provided with an open slot for the steel teeth to pass through; the steel teeth are in dry friction sliding fit connection with open slots, and the tops of the steel teeth are fixedly connected with the upper connecting plate. According to the shearing type STF damper, due to the fact that the flowing space of STF damping fluid is extremely small compared with the space occupied by the steel teeth, a large sliding speed can be generated, and STF can conveniently exert the shear thickening effect. Along with the increase of the shearing rate, the STF viscosity is rapidly increased, so that the impact resistance and vibration isolation of an engineering structure are realized. The damper has the advantages of being novel in structure and clear in construction, and is a safe and efficient damper.

Description

technical field [0001] The invention belongs to the technical field of structure damping, and in particular relates to a shear thickening fluid shear damper. Background technique [0002] With the continuous development and progress of modern science and technology, the vibration isolation and vibration reduction devices of building structures have also been continuously improved and updated. In recent decades, damper technology has developed rapidly in architectural structural engineering such as buildings and bridges. At present, viscous dampers are widely used in high-earthquake areas and high-rise buildings because of their simple structure, no maintenance, and long service life. [0003] Shear thickening fluid (STF) is a smart material with excellent performance, and the characteristics of STF depend on its shear strain rate. When subjected to a high strain rate load, the surface of the contact interface undergoes shear thickening behavior , its viscosity changes dram...

Claims

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Application Information

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IPC IPC(8): E04B1/98E04H9/02E01D19/04
CPCE04B1/98E04H9/0237E01D19/04
Inventor 孙丽刘明澈冯洛鑫张春巍王井利敦力民
Owner SHENYANG JIANZHU UNIVERSITY
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