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High-frequency tuning mass damper

A technology for tuning mass and shock absorber, which is applied in building components, shockproof and other directions, can solve the problem that tuned mass shock absorber is difficult to apply to high-frequency vibration above 15Hz, and achieves superior cost performance, broad market application prospects, and compact space structure. Effect

Active Publication Date: 2013-10-02
GERB QINGDAO VIBRATION CONTROL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In summary, it can be seen that the existing tuned mass dampers that use steel springs to directly support mass blocks are difficult to apply to high-frequency vibrations above 15 Hz

Method used

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  • High-frequency tuning mass damper
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  • High-frequency tuning mass damper

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Such as image 3 with Figure 4 The high-frequency mass-tuned shock absorber of the present invention shown includes a connecting plate 2, an elastic element, a damping element 6, and a mass block 3. In addition, it also includes a pre-tightening connecting piece 1, and the connecting plate 2 and the pre-tightening connecting piece 1 are arranged Preload structure 7. Among them, the pre-tightening connector 1 is made of steel plate, the size is the same as that of the connecting plate 2, and the mass block 3 is arranged between the connecting plate 2 and the pre-tightening connector 1; Set between the mass block 3 and the pre-tightening connector 1, the spiral steel spring 5 is set between the mass block 3 and the connecting plate 2; Between the block 3 and the pre-tightening connector 1 and between the mass block 3 and the connecting plate 2 . In addition, in this example, the pre-tightening structure 7 is set between the connecting plate 2 and the pre-tightening co...

Embodiment 2

[0041] Such as Figure 5 with Image 6 The difference between the high-frequency mass-tuned shock absorber of the present invention shown in Embodiment 1 is that the damping element 6 is only arranged between the mass block 3 and the connecting plate 2, and includes two small-hole throttling dampers. In addition, in the pre-tightening structure 7, the two ends of each pre-tightening connecting rod are respectively provided with thread structures, and the pre-tightening connecting rods are arranged through the pre-tightening connecting piece 1 and the connecting plate 2, and the nut 8 is used to cooperate with the threaded structure to lock the pre-tightening rod. The relative position of tight connector 1 and connecting plate 2. In order to prevent the elastic element from sliding horizontally during use, the pre-tightening connector 1, the connecting plate 2, and the mass block 3 adjacent to the elastic element are respectively fixed with limit seats 23, and the outer surfac...

Embodiment 3

[0044] Such as Figure 7 with Figure 8 The difference between the high-frequency mass-tuned shock absorber of the present invention shown in Embodiment 2 is that the damping element 10 is only arranged between the mass block 3 and the pre-tightening connector 1 , specifically two viscous dampers. In addition, one end of the pre-tightening connecting rod 7 is provided with a threaded structure, and the other end is welded and fixed on the connecting plate 2, and one end of the pre-tightening connecting rod with a threaded structure is set through the pre-tightening connector 1, and the nut 8 is used to cooperate with the threaded structure. The relative position of the pre-tightening connector 1 and the connecting plate 2 is locked, and the pre-tightening link 7 passes through the cavity in the middle of the elastic element, that is, passes through the cavity in the middle of the upper and lower corresponding helical steel springs 4 and 5 .

[0045] Compared with the first em...

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Abstract

The invention relates to a high-frequency tuning mass damper which comprises a connection plate, elastic elements, damping elements and a mass block. The mass block is arranged between the connection plate and a pre-tensioning connection piece, and the elastic elements are arranged between the mass block and the pre-tensioning connection piece and between the mass block and the connection plate respectively. The damping elements are arranged between the mass block and the pre-tensioning connection piece or / and between the mass block and the connection plate. A pre-tensioning structure is arranged between the connection plate and the pre-tensioning connection piece. The pre-tensioning structure exerts pre-tensioning force on the elastic elements to compress the elastic elements until the end portions of the elastic elements are fully contacted with the adjacent mass block, or the pre-tensioning piece or the connection plate. The elastic elements are made to be in a linear changing stage in which external force borne by the elastic elements and compression displacement of the elastic elements are in direct proportion. The high-frequency tuning mass damper is compact in space structure, suitable for control over vibration of a structure with 15Hz or higher frequency, superior in cost performance ratio, and wide in market application prospect.

Description

technical field [0001] The invention belongs to the technical field of vibration reduction of civil engineering structures, and in particular relates to a tuned mass vibration damper for controlling high-frequency vibrations of building structures. Background technique [0002] With the development of urban construction, various high-rise, super-high-rise buildings, slender structures, and long-span buildings are increasing. The prevention and control of destructive resonance in such large-span, low-frequency structures has become a reality that has to be solved in engineering construction. Problem, practice has proved that the tuned mass damper (also called mass tuned damper in the literature, or called mass tuned damper, also referred to as TMD in this paper) is an effective vibration control device, adjusting its natural frequency to close to the natural frequency of the structure and then mounted on the structure. When the structure is disturbed by the exciting force an...

Claims

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Application Information

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IPC IPC(8): E04B1/98
Inventor 尹学军孔祥斐王乾安
Owner GERB QINGDAO VIBRATION CONTROL
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