Underwater noiseless, drag-reducing and antifouling bionic housing

An anti-fouling and shell technology, which is applied in the field of bionic shells and underwater bionic shells, can solve the problems of reducing ship speed, affecting human health, affecting ship waveguide dynamics, economy and safety, etc., to achieve improved anti-fouling Pollution ability and the effect of reducing radiated sound
CN106741590AInactive Publication Date: 2017-05-31NORTHWESTERN POLYTECHNICAL UNIV
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
NORTHWESTERN POLYTECHNICAL UNIV
Publication Date
2017-05-31
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention relates to an underwater noiseless, drag-reducing and antifouling bionic housing, and belongs to the technical field of the ship building and ocean engineering. Parallel or radial U-shaped channels are distributed on the outer surface of a hard housing substrate. The U-shaped channels are formed by multiple strips of minitype ridge-shaped structures on the outer surface of the substrate. The outer surface of the substrate in each channel is provided with spherical-crown-shaped grooves distributed in the regular dot matrix. The underwater noiseless, drag-reducing and antifouling bionic housing is capable of, through the channel and groove design on the surface of the substrate, enabling the wave to be hindered in the transmission process of the housing, realizing the effective control of the vibration transmission, reducing the radiated sound, affecting the generation of the resistance through the effective control of the contact of the surface and the fluid, achieving the goal of the energy conservation and drag reduction, and improving the antifouling ability of the housing surface as the underwater creatures are easily fallen off because of the unstable attachment.
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Description

technical field

[0001] The invention belongs to the field of ships and marine engineering. The invention relates to a bionic shell, in particular to an underwater bionic shell with the characteristics of quietness, drag reduction and antifouling. Background technique

[0002] Ships are complex large-scale power machinery structures, and their vibration and noise reduction technology has always been one of the focuses of engineering research. Excessive structural vibration and the noise caused by vibration will cause physical discomfort of the crew, reduce work efficiency, and even damage health. At the same time, if some precision equipment and instruments on the ship work in a strong vibration environment for a long time, the service life will be shortened, or even damaged and malfunction, which will affect the normal operation of the ship. In addition, the radiated noise generated by the hull can have adverse effects on marine life. While humans use the ocean, they shou...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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