A 3D Dynamic Vibration Absorber for Pipelines

Abstract

The invention relates to a three-dimensional dynamic vibration absorber for a pipeline. The three-dimensional dynamic vibration absorber for the pipeline comprises a clamping ring for clamping the pipeline tightly, the clamping ring is fixedly connected with a support, multiple first frequency adjusting blocks and multiple second frequency adjusting blocks are located on the periphery of the support and arranged in the peripheral direction, the first frequency adjusting blocks are connected with the support through a pair of first leaf springs, the first leaf springs are arranged transversely, the second frequency adjusting blocks are also connected with the support through second leaf springs, and the second leaf springs are arranged longitudinally relative to the first leaf springs. The peripheries of the first frequency adjusting blocks and the peripheries of the second frequency adjusting blocks are fixedly connected to an outer shell through second fasteners. The three-dimensional dynamic vibration absorber for the pipeline is simple in structure, convenient to mount and demount, small in occupied space and capable of being used in environments under normal temperature, high temperature and high irradiation and effectively achieves three-dimensional vibration control of the pipeline, the inherent frequency in every direction can be adjusted conveniently, reliably and independently.

Description

technical field [0001] The invention relates to vibration control technology, in particular to a three-dimensional dynamic vibration absorber for pipelines. Background technique [0002] At present, in the fields of ships, electric power, petrochemical industry, etc., it is necessary to control the vibration of pipelines. The common method is to install dynamic vibration absorbers on pipelines. Due to the characteristics of the spatial distribution of the pipeline, when the mechanical vibration is transmitted to a pipeline, it will be converted in multiple degrees of freedom. Therefore, the vibration control of the pipeline needs to consider both lateral and axial vibrations. At present, for the above-mentioned multi-directional vibration The solution to the problem is to install multiple vibration absorbers with one-way vibration function, but installing multiple vibration absorbers is easy to be limited by conditions such as weight and space on the one hand, and is not con...

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Problems solved by technology

Due to the characteristics of the spatial distribution of the pipeline, when the mechanical vibration is transmitted to a pipeline, it will be converted in multiple degrees of freedom. Therefore, the vibration control of the pipeline needs to consider both lateral and axial vibrations. At present, for the above-mentioned multi-directional vibration The solution to the problem is to install multiple vibration absorbers with one-way vibration function, but installing multiple vibration absorbers is easy to be limited by weight and space conditions on the one hand, and is not conducive to maintenance on the other hand

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