Dynamic vibration absorber capable of reducing vibration of pipelines and method for designing dynamic vibration absorber

A technology of dynamic vibration absorbers and pipelines, which is applied in the direction of pipe components, pipe supports, mechanical equipment, etc., to achieve the effects of easy installation, economical and practical, and wide applicability

Active Publication Date: 2013-12-25
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

The disadvantage of these methods is that the existing pipeline or the surrounding structure needs to be modified. However, in many cases, due to the limitation of installation conditions, it cannot be implemented on the pipeline site. Reliance, only need to be installed in the pipeline to achieve vibration reduction

Method used

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  • Dynamic vibration absorber capable of reducing vibration of pipelines and method for designing dynamic vibration absorber
  • Dynamic vibration absorber capable of reducing vibration of pipelines and method for designing dynamic vibration absorber
  • Dynamic vibration absorber capable of reducing vibration of pipelines and method for designing dynamic vibration absorber

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Embodiment Construction

[0022] The technical scheme of the present invention will be further described below with reference to the drawings and embodiments:

[0023] Such as figure 1 with figure 2 As shown, the present invention includes a clamping structure 1, a plurality of spring leaves 4, and the same number of additional masses 7 as the spring leaves: the clamping structure 1 is a split structure and is connected together by two bolts 2 and nuts 3; A plurality of spring plates 4 symmetrically installed outside the clamping structure by screws 5 make the circumferential support rigidity and damping isotropic, and the additional mass 7 installed with the spring plates through bolts 8 and nuts 3.

[0024] The arc surface of the inner ring of the clamping structure 1 is slightly smaller than the arc surface of the semicircle. Ensure that the clamping structure 1 can be stably clamped into the pipeline.

[0025] Principle detailed introduction

[0026] The dynamic vibration absorber is a vibration system c...

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Abstract

The invention relates to a dynamic vibration absorber capable of reducing vibration levels of pipelines and a method for designing the dynamic vibration absorber, and belongs to the technical field of vibration absorption. The dynamic vibration absorber comprises a first pair of pipeline clamps (1); the pipeline clamps (1) are connected with each other by first bolts (2) and first nuts (3); N spring strips (4) are uniformly mounted on the outsides of the pair of pipeline clamps (1); additional mass blocks (7) are mounted at the tail ends of the spring strips (4); the N ranges from 3 to 6. The dynamic vibration absorber and the method have the advantages that the dynamic vibration absorber is simple in structure, easy to install and high in reliability, and vibration of various pipeline systems can be effectively reduced.

Description

Technical field [0001] The invention relates to a dynamic vibration absorber and a design method for reducing the vibration level of a pipeline, and belongs to the technical field of vibration absorption. Background technique [0002] Vibration control is divided into active and passive control. As one of the passive control technologies, the dynamic vibration absorber is one of the hot spots in the field of engineering machinery research. Compared with the high investment and maintenance cost of active power mass damper, the large power requirement and the need to modify the structural design, the passive control only requires some simple hardware equipment, which has the advantages of lower investment and maintenance costs and smaller power requirements. Therefore, the Dynamic Vibration Absorber (DVA) is a control device with good application prospects. [0003] The application research of pipeline vibration reduction is mainly devoted to pipeline vibration reduction, and the me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L55/02F16L3/205
Inventor 陈果程小勇赵斌罗云郑其辉刘明华侯民利
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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