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Angle-adjustable drag reduction device based on simulated puffer fish body thorns

A drag reduction device and angle adjustment technology, which is applied in the direction of hull, hull design, transportation and packaging, etc., can solve the problems of poor drag reduction effect, structure (high elastic film damage, etc.), to reduce component damage rate and optimize drag reduction effect , the effect of saving time

Active Publication Date: 2021-03-12
JIANGSU UNIV OF SCI & TECH
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AI Technical Summary

Problems solved by technology

The effect of drag reduction is realized by the rigid-flexible coupling surface parameter adjustment device. However, when this structure is used in practice, the structure (high elastic film) will be damaged. In addition, there will be a certain gap between the openings on the substrate and the film. This results in poor drag reduction

Method used

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  • Angle-adjustable drag reduction device based on simulated puffer fish body thorns
  • Angle-adjustable drag reduction device based on simulated puffer fish body thorns
  • Angle-adjustable drag reduction device based on simulated puffer fish body thorns

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Embodiment Construction

[0027] The invention is further described in detail below in connection with the examples.

[0028] Such as Figure 1 ~ 8 As shown, the present invention is based on the angular adjustable reducing apparatus of the imitation river body thorn, which includes a first electromagnetic drive displacement controller 1, an inclined angle adjustment device 2, a substrate 3, a porous rigid substrate 4, an elastic cover layer 5, reduction The resistance unit 6, the rolling element 7, the vertical link 8, the second electromagnetic drive displacement controller 9, the flow angle adjustment device 10, the pin (sleeve) 11, the horizontal link 12. The base 3 supports the substrate 4, and the substrate 3 contains the inclination angle adjustment device 2, the vertical link 8, the rut angle adjustment device 10, the pin (sleeve) 11, the horizontal link 12, and the fixed first electromagnetic drive displacement controller 1 and the second electromagnetic drive displacement controller 9. The elastic...

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Abstract

The invention discloses an angle-adjustable drag reduction device based on simulated puffer fish body thorns. The angle-adjustable drag reduction device comprises a base body with a containing space,a body thorn structure and an angle adjusting mechanism. The base body is provided with a porous rigid base used for supporting the body thorn structure, the body thorn structure comprises a rolling body and a drag reduction element fixedly connected with the rolling body, the rolling body is arranged in a hole formed in the rigid base and matched with the hole, the drag reduction element extendsout of the base body, and the angle adjusting mechanism is connected with the rolling body. The outer surface of the rigid base is covered with an elastic layer, and the elastic layer is tightly attached to the drag reduction element and forms a closed cavity with the base body. The angle adjusting mechanism drives the rolling body to rotate in the hole of the rigid base, and then the angle of thedrag reduction element is adjusted. The device can realize drag reduction optimization, is suitable for various conditions, avoids waste caused by repeated replacement of the component in the test, saves time to improve the test efficiency, optimizes the drag reduction effect, reduces the damage rate of the component, and improves the applicability of the component.

Description

Technical field [0001] The present invention relates to an adjustable reduction device, and more particularly to an angle adjustable reducing device based on imitation river. Background technique [0002] As energy consumption is increasing, the comprehensive performance of ships and submarines and other navigation materials have been put forward higher requirements. The various resistances need to be overcome during the navigation process, such as the wave resistance, eddy current resistance, and friction resistance, wherein the friction resistance accounts for 40% -80% of the total resistance, and it can be seen that reducing fluid friction resistance can improve the navigation speed and energy utilization of the navigation body. Comprehensive performance, etc. Bionic studies have shown that non-smooth structures can change the flow field structure of the boundary layer by adjusting the body surface structure, thereby reducing frictional resistance. [0003] There are a variety...

Claims

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Application Information

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IPC IPC(8): B63B1/34B63B1/36
CPCB63B1/34B63B1/36Y02T70/10
Inventor 田桂中贾长峰周宏根冯晓明朱烨圣范东亮石晋
Owner JIANGSU UNIV OF SCI & TECH
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