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Aluminum alloy variable chamber particle collision damper for pipeline vibration reduction

A particle collision, aluminum alloy technology, applied in the direction of shock absorber, friction shock absorber, shock absorber, etc., can solve the problems of poor vibration control effect, limited installation conditions, large mass, etc., and achieve a significant effect of vibration reduction , small installation space and light weight

Inactive Publication Date: 2018-05-18
CHENGDU AIRCRAFT INDUSTRY GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of large mass, limited installation conditions and poor vibration control effect in the prior art, the present invention proposes an aluminum alloy variable chamber particle collision damper for pipeline vibration reduction

Method used

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  • Aluminum alloy variable chamber particle collision damper for pipeline vibration reduction
  • Aluminum alloy variable chamber particle collision damper for pipeline vibration reduction
  • Aluminum alloy variable chamber particle collision damper for pipeline vibration reduction

Examples

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Effect test

Embodiment 1

[0022] An aluminum alloy variable-chamber particle collision damper for pipeline vibration reduction includes a pair of semi-circular column cavities 1, and each semi-circular cavity is provided with a semi-circular outer surface at both ends of the cavity. Cover plate 2, the inside of the semi-annular column cavity 1 is provided with a plurality of cavity internal unit partitions 3, and the interior of the semi-annular column cavity 1 is divided into a plurality of cavity internal unit partitions 3 An independent small cavity filled with metal particles 4 . The metal particles 4 inside the cavity will collide and rub against each other as the pipeline vibrates, thus consuming the vibration energy of the system. The filling rate of the metal particles 4 inside the cavity is the main factor affecting the vibration damping effect of the pipeline. The patented invention has simple structure, small installation space and remarkable vibration reduction effect.

Embodiment 2

[0024] An aluminum alloy variable-chamber particle collision damper for pipeline vibration reduction includes a pair of semi-circular column cavities 1, and each semi-circular cavity is provided with a semi-circular outer surface at both ends of the cavity. Cover plate 2, the inside of the semi-annular column cavity 1 is provided with a plurality of cavity internal unit partitions 3, and the interior of the semi-annular column cavity 1 is divided into a plurality of cavity internal unit partitions 3 An independent small cavity filled with metal particles 4 . The cover plate 2 on the outer surface of the cavity is fixed on the end surface of the cavity 1 of the semicircular column by a plurality of first bolts 5 . The edge of a pair of semi-annular column chambers 1 is provided with a cylinder groove 6, and a through hole is provided on the bottom of the cylinder groove 6, and the two semi-annular column chambers 1 pass through the second bolt and the through hole. The nuts 7 ...

Embodiment 3

[0028] Such as figure 1 As shown, the patent of the present invention relates to a pipeline damper based on particle collision damping technology that suppresses pipeline vibration, and belongs to the field of vibration control technology. The pipeline damper is made of aluminum alloy as a whole, and includes a pair of semi-circular column cavities 1 , a cover plate 2 on the outer surface of the cavity, a unit partition 3 inside the cavity and internal metal particles 4 . Fill the interior of the semi-annular column cavity 1 with a certain amount of metal particles 4, fix the semi-circular thin plate to close the cavity by the first bolt 5, and a pair of semi-annular column cavity 1 filled with metal particles 4 pass through the groove of the column body The second bolt and nut 7 in 6 are fastened on the vibrating pipeline 8 . The metal particles 4 inside the cavity will collide and rub against each other as the pipeline vibrates, thus consuming the vibration energy of the sy...

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Abstract

The invention belongs to the technical field of vibration control, and particularly relates to an aluminum alloy variable chamber particle collision damper for pipeline vibration reduction. The dampercomprises a pair of semi-circular ring column cavities, semi-circular ring cavity outer surface cover plates are arranged at the two ends of each semi-circular ring column cavity, a plurality of cavity inner unit partition plates are arranged inside each semi-circular ring column cavity, the plurality of cavity inner unit partition plates divide the interior of each semi-circular ring column cavity into a plurality of independent small cavities, and metal particles filled the small cavities. The metal particles inside the cavities can collide and rub against with one another along with a pipeline vibrated, so that the vibration energy of the system is consumed, wherein the filling rate of the metal particles inside the cavities is the main factor of affecting the vibration reduction effect of the pipeline. The damper is simple in structure, small in mounting space and remarkable in vibration reduction effect.

Description

technical field [0001] The invention belongs to the technical field of vibration control, in particular to an aluminum alloy variable chamber particle collision damper used for pipeline vibration reduction. technical background [0002] In engineering practice, frequent mechanical failures caused by the vibration of the piping system lead to many unsafe incidents. In design practice, pipeline resonance is generally avoided or suppressed by changing the pipeline shape or applying clamps, but there are certain limitations in the specific implementation process. However, most shock absorbers designed based on damping technology and anti-resonance technology have disadvantages such as large mass, limited installation conditions, and poor vibration control effects. [0003] Existing patent applications such as the patent number CN201510613313.9, the application date is 2015.09.24, the invention patent named "Nonlinear particle collision damper", the technical solution is: the in...

Claims

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Application Information

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IPC IPC(8): F16L55/02F16F15/02F16F7/01F16F7/00
CPCF16L55/02F16F7/00F16F7/01F16F7/015F16F15/02
Inventor 赵正大陈果侯民利寸文渊
Owner CHENGDU AIRCRAFT INDUSTRY GROUP
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