An adaptive suppression device for vortex-induced oscillation of an underwater vehicle

Abstract

The invention discloses an adaptive suppression device for vortex-induced oscillation of an underwater vehicle. The device includes six parts: fixed vertical wing, rotatable vertical wing, fixed horizontal wing, rotatable horizontal wing, cylindrical mandrel and rubber gasket. Wherein the rotatable vertical wing is connected with the fixed vertical wing through a cylindrical mandrel; The rotatablehorizontal wing is connected with the fixed horizontal wing through a cylindrical mandrel; The fixed vertical wing and the fixed horizontal wing are fastened by bolts; Both the rotatable vertical wing and the rotatable horizontal wing can rotate around the cylindrical mandrel to accommodate different directions of inflow in the ocean. The rotatable streamline wing can restrain the formation and development of vortex by adjusting the angle of the inflow direction adaptively, so that the whole underwater vehicle can quickly return to the equilibrium state. The invention can reduce the deflection and dithering of the underwater vehicle under the action of the vortex-induced oscillation, and has high application value in the marine environment.

Description

technical field [0001] The invention belongs to the technical field of marine engineering, in particular to an adaptive suppressing device for vortex-induced oscillation of an underwater vehicle. Background technique [0002] With the continuous acceleration of the pace of human exploration of the ocean, people are increasingly aware that the ocean will become the basic environment for human survival. The ocean has become an important fulcrum for economic development because of its rich biological and mineral resources. An important way out for resource shortage and environmental degradation; the ocean has become an important factor affecting the global climate and carbon cycle due to its huge water area and water storage, and is an important object for studying the living environment of human beings; the ocean has become an important The national defense barrier is highly valued by countries all over the world. [0003] Today, developing ocean blue land and expanding livin...

AI Technical Summary

Problems solved by technology

However, both the active sonar system and the passive sonar system will be affected by vortex induced oscillations during their working process, which will cause the underwater vehicle to deflect, flip and swing to varying degrees.

During the test, it was found that the monitoring system trembled due to vortex-induced oscillation, which caused the cable to break due to fatigue damage and the cable core to rupture, causing the signal line to leak and short circuit, resulting in a major safety accident in which the cable was broken and the marine monitoring equipment was lost. , so how to effectively prevent vortex-induced vibration is of great significance to the design and research of underwater vehicles

[0004] At present, streamlined airfoil design or active control is usually used to reduce the influence of vortex-induced oscillation. Using streamlined airfoil design in the case of complex inflow environments such as oceans, it is generally impossible to effectively achieve the effect of self-adaptive solution to vortex-induced oscillation through its own structure. ; The use of active control is difficult to install and maintain, and the cost is high. At the same time, the active control method is difficult and complex to control in the actual operation process

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