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Device, system and method for suppressing vortex-induced vibration of blunt body

A vortex-induced vibration and suppression device technology, which is applied in the field of vortex-induced vibration suppression devices for blunt bodies, can solve problems such as fatigue damage of blunt body structures, and achieve the effects of avoiding fatigue damage, suppressing vortex-induced vibration, and changing force characteristics

Active Publication Date: 2022-04-15
BEIHANG UNIV
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  • Application Information

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Problems solved by technology

[0005] The embodiments of the present invention provide a device, system and method for suppressing vortex-induced vibration of a blunt body, so as to solve the technical problem that the vortex-induced vibration of the blunt body occurs after the fluid flows through the blunt body, and the vortex-induced vibration causes fatigue damage to the structure of the blunt body

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  • Device, system and method for suppressing vortex-induced vibration of blunt body
  • Device, system and method for suppressing vortex-induced vibration of blunt body
  • Device, system and method for suppressing vortex-induced vibration of blunt body

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Embodiment Construction

[0044] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0045] In describing the present invention, it is to be understood that the terms "centre", "length", "width", "thickness", "top", "bottom", "upper", "lower", " "Left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", "axial", "circumferential", etc. indicate the orientation or positional relationship based on the drawings Th...

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Abstract

Embodiments of the present invention provide a device, system and method for suppressing vortex-induced vibration of a blunt body. The device includes at least one suppressing component; the suppressing component is a sheet-shaped flexible structure; wherein, the suppressing component is fixed on a preset outer surface of the blunt body area, and the connection between the suppressing component and the blunt body is distributed along the axial direction of the blunt body, so that the surface where the sheet of the suppressing component is located expands along the flow direction of the fluid when the fluid flows through the blunt body; the suppressing component and the blunt body The fluid in the wake of the blunt body undergoes fluid-solid coupling to deform the restraining components and change the force characteristics of the blunt body. The embodiments of the present invention can change the force characteristics of the blunt body when the fluid flows through the blunt body, suppress the vortex-induced vibration of the blunt body in the fluid, and further avoid fatigue damage to the blunt body structure caused by the vortex-induced vibration.

Description

technical field [0001] The invention relates to the technical field of flow control, in particular to a device, system and method for suppressing vortex-induced vibration of a blunt body. Background technique [0002] In daily life and various engineering fields, fluids often flow through blunt bodies, such as atmospheric or ocean currents flowing through buildings, bridges, power lines, and submarine cables. [0003] After the fluid flows through the blunt body, flow separation occurs, and the generated shear layer will be induced to generate alternately shedding wake vortices, which will generate periodically changing aerodynamic force, causing the blunt body to undergo vortex-induced vibration. [0004] However, the vortex-induced vibration of the blunt body will cause fatigue damage to the blunt body structure. Contents of the invention [0005] The embodiments of the present invention provide a device, system and method for suppressing vortex-induced vibration of a b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15D1/00G01H9/00
CPCF15D1/006F15D1/0065F15D1/007G01H9/00
Inventor 冯立好崔国鹏王晋军
Owner BEIHANG UNIV
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