Modeling method of cartilaginous fish placoid scale groove section profile curve

A cross-sectional profile and modeling method technology, applied in 3D modeling, image data processing, measuring devices, etc., can solve problems that hinder the development and application of digital manufacturing technology for high-fidelity bionic drag-reducing surfaces

Inactive Publication Date: 2012-07-18
SHANDONG UNIV OF TECH
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Problems solved by technology

However, there has been no report on the research on the curve modeling method for the cross-sectional profile of the cartilaginous shield scale groove, which directly hinders the development and application of digital manufacturing technology for high-fidelity bionic drag-reducing surfaces.

Method used

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  • Modeling method of cartilaginous fish placoid scale groove section profile curve
  • Modeling method of cartilaginous fish placoid scale groove section profile curve
  • Modeling method of cartilaginous fish placoid scale groove section profile curve

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Embodiment

[0040] A modeling method for the cross-sectional profile curve of the scutellaria's scutellaria.

[0041] see figure 1 As shown, the present invention is a modeling method of the cross-sectional profile curve of the scutellaria scutellaria groove, which includes the following steps.

[0042] The first step: biological skin sampling and pretreatment.

[0043] (A) Cut the purchased raw bobtail shark skin into a size of 6cm×6cm, wash it with deionized water for 5 times, and then put the washed raw bobtail shark skin in 2.5% glutaraldehyde Chemical fixation in the solution for 8 hours, the chemical fixation temperature is 4°C, and the fixed epidermis samples were prepared.

[0044](B) Wash the fixed epidermis sample prepared in step (A) with deionized water for 5 times, then dehydrate the washed fixed epidermis sample in 50% ethanol solution for 30 minutes, and dehydrate in 75% ethanol solution 30 min, dehydrated in 95% ethanol solution for 30 min, and dehydrated in 100% ethano...

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Abstract

The invention discloses a modeling method of a cartilaginous fish placoid scale groove section profile curve. The method comprises the following steps of: sampling and preprocessing biological skin; scanning and imaging the surface profile of a biological sample; extracting a three-dimensional placoid scale groove biological prototype model; extracting a two-dimensional placoid scale groove section profile curve; and establishing a placoid scale groove section profile curve model and the like to finally obtain a mathematical model of the placoid scale groove section profile curve on the cartilaginous fish skin sample. The method has the advantages that: by performing high-definition surface profile scanning and imaging on the cartilaginous fish skin sample, the fitting degree between the established mathematical model and the prototype model is high. The cartilaginous fish placoid scale groove section profile curve mathematical model established by the method can be taken as a data source for manufacturing a high-reality bionic drag-reduction surface by using digital control processing equipment.

Description

technical field [0001] The invention provides a method for modeling the profile curve of the cartilaginous shield scale groove section, and belongs to the technical field of bionic drag reduction. Background technique [0002] Underwater low-resistance cartilaginous fish such as sharks provide an effective solution for humans to deal with the increasingly severe energy problems. The drag reduction rate of shark skin is above 15%, and its epidermal scales are a special type of scales called placoid scales. The shield scales are arranged continuously in a rhombus shape. A single shield scale is composed of the base plate and scale spines. The base plate is a bony plate buried in the skin. There are smooth round valley-shaped grooves between the scales and spines outside the skin, and the width of the grooves varies from 30 μm to 120 μm depending on the species of shark. Studies have shown that the shape of the cross-sectional profile of the low-resistance high-speed cartilag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/24G06T17/00
Inventor 韩鑫王娟王小翠林玉飞刘家瑞
Owner SHANDONG UNIV OF TECH
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