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Vortex-induced vibration testing system suitable for multi-oscillator coupled vibration research

A technology of coupling vibration and vortex-induced vibration, which is used in fluid dynamics tests, testing of machine/structural components, measuring devices, etc. problems, to achieve the effect of improving test efficiency, simple design of connection and force transmission structure, and good economic applicability

Inactive Publication Date: 2015-06-24
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for the research on the mechanism of two vibrators (rigid cylinder with elastic support and variable solid springs), the arrangement of the vibrators is very limited, and it cannot effectively realize the arrangement of various forms (series, parallel, each class oblique arrangement)
For multi-oscillators, there is no effective mechanism research device, but only an engineering test device for marine risers (the cylinder is a flexible body, and there is no solid spring)

Method used

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  • Vortex-induced vibration testing system suitable for multi-oscillator coupled vibration research
  • Vortex-induced vibration testing system suitable for multi-oscillator coupled vibration research
  • Vortex-induced vibration testing system suitable for multi-oscillator coupled vibration research

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Embodiment Construction

[0017] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0018] attached by figure 1 , attached figure 2 And attached image 3 It can be seen that the present invention is mainly composed of three parts: a fixed support module, a sliding support module and a sliding system. The fixed support module includes a workbench 1, a support rod 2, and a support linear guide rail 3; the workbench 1 includes two upstream and downstream, fixed on the top of the tank, and is connected to each other by the support rods 2 to form an overall structure; the support linear guide rail 3 is placed on the support rod superior. The sliding support module includes a sliding support frame 4, a vertical linear slideway 5 and a spring hanging plate 6; the vertical linear slideway 5 is placed on the sliding support frame 4; the spring hanging plate 6 is placed outside the sliding support frame 4; the sliding support frame 4. The top and...

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Abstract

The invention discloses a vortex-induced vibration testing system suitable for multi-oscillator coupled vibration research, and relates to the field of fluid mechanics and experimental facilities. The vortex-induced vibration testing system is formed by three parts of a fixed supporting module, a slidable supporting module and a sliding system; the slidable support module can freely slide on the fixed supporting module, and meanwhile the sliding system can do vertical linear reciprocating motion on the slidable supporting module through a tension spring. The vortex-induced vibration testing system is not only suitable for a single-oscillator vortex-induced vibration test, but also suitable for a two / more-oscillator vortex-induced vibration test under the condition of various arrays. Meanwhile, the system can achieve various configuration forms such as series connection, parallel connection, inclined configuration and series-parallel coupling configuration among multiple oscillators, expands the research range of vortex-induced vibration, and supplies good testing conditions to multi-oscillator coupled wake galloping research.

Description

technical field [0001] The invention relates to the field of fluid mechanics and experimental devices, and is a high-efficiency test system suitable for both single independent vibration and multi-vibrator coupled vibration research. Background technique [0002] At a specific flow rate, the elastically supported blunt body around the flow produces periodic vibrations due to the vortices that alternately fall off the rear side, and the periodic vibration of the blunt body will also cause the change of the mode of the wake shedding vortex at the rear side of the blunt body. This kind of fluid and solid The phenomenon of interaction is called Vortex-Induced Vibration (VIV for short). The initial research content of vortex induced vibration mainly focused on how to suppress the vibration to reduce its damage to the building structure, but with the development and deepening of the research, it was found that the vibration energy of vortex induced vibration could be utilized. Pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M10/00
Inventor 任泉超燕翔张军刘昉
Owner TIANJIN UNIV
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