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Low-frequency tuned mass damper

A shock absorber, low frequency technology, applied in building components, anti-vibration, building types, etc., can solve the problem that spiral steel springs cannot be widely used, and achieve the effect of superior cost performance, broad market application prospects, and expanded application scope.

Inactive Publication Date: 2020-09-04
GERB QINGDAO VIBRATION CONTROL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in practice, due to reasons such as installation space and manufacturing difficulty, helical steel springs cannot be widely used in the field of low-frequency tuning vibration reduction with a tuning frequency of 0.5 Hz and below.

Method used

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  • Low-frequency tuned mass damper
  • Low-frequency tuned mass damper
  • Low-frequency tuned mass damper

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Such as figure 1 The low-frequency mass tuned shock absorber shown in the present invention includes a spiral steel spring 3, a damping device 2 and a mass 1. The mass 1 is elastically supported by the spiral steel spring 3, and also includes a spring height overlapping arrangement support 4 and a horizontal support 5. The helical steel spring 3 is divided into two height levels and is respectively arranged between the mass 1 and the spring height overlapping arrangement bracket 4 and between the spring height overlapping arrangement bracket 4 and the horizontal bracket 5; the spring height overlapping arrangement bracket A height dislocation boss is set on 4, the height dislocation boss is formed by the partial bending of the spring height overlapping arrangement bracket, and the spiral steel springs on the upper and lower sides of the same spring height overlap arrangement bracket are matched with the height dislocation boss to be in a local height overlap Specifically,...

Embodiment 2

[0022] Such as figure 2 The difference between the low-frequency mass tuned shock absorber of the present invention shown in the first embodiment is that it includes two spring height overlapping arrangement brackets 4 and two horizontal brackets 5. The spiral steel spring 3 is divided into four height levels and arranged at The mass 1 and the spring height overlap arrangement bracket 4 and the spring height overlap arrangement bracket 4 and the horizontal bracket 5; in addition, the damping device 2 is arranged at the lowest horizontal bracket 5 and the adjacent spring height overlap arrangement bracket 4 In addition, it also includes a motion guide 6, the motion guide 6 is fixed on the horizontal bracket 5 and the spring height overlapping arrangement bracket 4 located in the lower part of the system, and passes through the middle cavity of the spiral steel spring 3.

[0023] Compared with the first embodiment, the technical solution described in this example includes two sprin...

Embodiment 3

[0026] Such as image 3 The difference between the low-frequency mass tuned shock absorber of the present invention shown in the first embodiment is that it includes two spring height-overlapping brackets 4 and a horizontal bracket 5, and the height-dislocation bosses of the two spring height-overlapping brackets 4 are opposite to each other. The helical steel spring includes a first helical steel spring 7 and a second helical steel spring 8, which are divided into three levels for arrangement. Among them, the first helical steel spring 7 is respectively arranged on the mass 1 and the spring height overlaps Arrange the brackets 4 and between the spring height overlapping arrangement bracket 4 and the horizontal bracket 5, the second coil steel spring 8 is arranged between adjacent spring height overlapping arrangement brackets 4; in addition, the damping device is respectively arranged in the mass 1 and the spring Between the highly overlapping arrangement brackets 4, between th...

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Abstract

The invention discloses a low-frequency tuned mass damper, and belongs to the technical field of civil engineering structure shock absorption. The low-frequency tuned mass damper comprises spiral steel springs. The spiral steel springs are arranged between a mass block and spring height overlapping arrangement supports and between the spring height overlapping arrangement supports and horizontal supports, or the spiral steel springs are arranged between the mass block and the spring height overlapping arrangement supports, between adjacent spring height overlapping arrangement supports and between the spring height overlapping arrangement supports and the horizontal supports. Height staggered bosses are arranged on the spring height overlapping arrangement supports, and the spiral steel springs on the upper side and the lower side of a same spring height overlapping arrangement support are matched with the height staggered bosses correspondingly so that a part height overlapping statecan be achieved. Damping devices are arranged between the mass block and the spring height overlapping arrangement supports or / and between the mass block and the horizontal supports or / and between theadjacent spring height overlapping arrangement supports or / and between the spring height overlapping arrangement supports and the horizontal supports. The low-frequency tuned mass damper can be suitable for control of structure vibration of 0.5 Hz or even lower frequency.

Description

Technical field [0001] The invention belongs to the technical field of civil engineering structure vibration reduction, and specifically relates to a tuned mass vibration absorber for controlling low-frequency vibration of a building structure. Background technique [0002] With the development of urban construction, a variety of high-rise, super high-rise buildings, slender structures, and large-span buildings are increasing. Preventing and preventing the destructive resonance of such large-span and low-frequency structures has become a reality that has to be addressed in engineering construction. Problem, practice has proved that the tuned mass damper (also called mass tuned damper, tuned mass damper or mass tuned damper, also referred to as TMD in this article) is an effective vibration control device. The natural frequency is adjusted to be close to the natural frequency of the structure, and then installed on the structure. When the structure is disturbed by the excitation ...

Claims

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Application Information

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IPC IPC(8): E04B1/98E04H9/02
CPCE04H9/021
Inventor 尹学军王乾安谷朝红谭平蒲黔辉冯青松王建立范利辉孔祥斐倪维勇
Owner GERB QINGDAO VIBRATION CONTROL