High-fidelity shark-imitating anti-drag structure capable of slowly releasing drag reducer instantly and manufacturing method thereof

A production method and shark-imitating technology, applied in the field of bionics, can solve the problems that the release of drag reducing agent cannot be automatically controlled according to the speed, the release of drag reducing agent is not easy, and the efficiency of drag reduction needs to be improved, so as to improve high-speed maneuverability and reduce Effects of sailing resistance and high-efficiency coupling drag reduction effect

Inactive Publication Date: 2012-03-21
SHANDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this kind of shark-like drag reduction structure has problems such as unrealistic scale grooves, automatic control of the release of drag reducer according to the speed, large amoun

Method used

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  • High-fidelity shark-imitating anti-drag structure capable of slowly releasing drag reducer instantly and manufacturing method thereof
  • High-fidelity shark-imitating anti-drag structure capable of slowly releasing drag reducer instantly and manufacturing method thereof
  • High-fidelity shark-imitating anti-drag structure capable of slowly releasing drag reducer instantly and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0064] Embodiment 1: The control module 9 in the slow-release electro-hydraulic control system can adopt such image 3 shown in the circuit diagram. Correspond the speed of the power rotating device on the application object to its actual sailing speed, and set the power speed corresponding to the application object at a certain speed (such as 40kph) as the set value of the speed relay (can be set arbitrarily according to the sailing speed) .

[0065] When the speed relay 8 detects that the speed information is higher than a set value, the KS-1 in the action control module of the speed relay 8 is closed, the contactor coil KM1 is energized, the normally open contact KM1 is closed, and the motor M drives the hydraulic pump 5 to work. The normally open contact KM1 in the control module 9 is closed, and the indicator light EL1 is on, indicating that the hydraulic pump 5 is working, pumping the drag reducing agent into the drag reducing agent delivery channel 12, and then passing...

Embodiment approach 2

[0069] Embodiment 2: The scaled skin 1 made by the manufacturing method of the present invention is applied to the surface of the application object 2 in contact with liquid such as a micro underwater robot, a micro submarine, a torpedo, and the like. Such as figure 1 As shown, the scaly skin 1 is bonded to the outer surface of the application object 2 with waterproof superglue, the scaly side of the scaly skin 1 faces outward, and the side containing the drag reducing agent delivery channel 12 is close to the application object 2 the outer surface. The direction of the scale groove on the scaly surface is consistent with the direction of flowing water.

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Abstract

The invention relates to bionic technical field, and specifically relates to a shark-imitating anti-drag structure and a manufacturing method thereof. The high-fidelity shark-imitating anti-drag structure capable of slowly releasing drag reducer instantly comprises a shark skin-imitating layer, the upper surface of the shark skin-imitating layer is a scutate surface, the lower surface of the shark skin-imitating layer is dug with at least two grooves, the at least two grooves are interconnected with each other, and through holes which interconnects the upper surface with the lower surface areprovided in the grooves; and the shark-imitating anti-drag structure further comprises a slow release electric hydraulic control system. Because the technical solution is used, the high-fidelity shark-imitating anti-drag structure not only possesses a high-fidelity shark-imitating squama groove appearance, but also can imitate instantaneous fluid-secreting system of living shark under high speed maneuvering, for realizing high-efficient coupling drag reduction of squama groove sand self-lubricating mucus.

Description

technical field [0001] The invention relates to the field of bionic technology, in particular to a shark-like drag-reducing structure and a manufacturing method. Background technique [0002] Sharks are good swimmers in the ocean. Their cruising speed in the water is about 5kph, and they can burst to 70kph instantly when chasing prey. In addition to its standard streamlined body, the high swimming speed of sharks is also closely related to its special micron-scale scale groove structure and the mucus secreted by its body surface. On the one hand, sharks only secrete mucus instantaneously from the subscale epidermis when they need high-speed maneuvers (such as predation), and basically do not secrete mucus at other times to avoid wasting physical energy. It is a mechanism that requires immediate release according to the swimming speed; on the other hand, shark mucus contains viscous polysaccharides and fiber substances that are slightly soluble in water. When dissolved in wa...

Claims

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Application Information

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IPC IPC(8): B63B1/34
CPCY02T70/10
Inventor 韩鑫黄淼焦龙伟朱由智邱先慧张珊珊
Owner SHANDONG UNIV OF TECH
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