Method for generating three-dimensional model of corrugation structure of dragonfly wing

Abstract

The invention relates to a method for generating a three-dimensional model of a corrugation structure of a dragonfly wing. The method comprises the steps that firstly, the measured dragonfly wing is selected; titanium dioxide is evenly sprayed on the surface of the selected measured dragonfly wing to obtain a dragonfly wing sample; finally, a laser scanning device is used for scanning the dragonfly wing sample to generate the three-dimensional model of the corrugation structure of the dragonfly wing. The method for generating the three-dimensional model of the corrugation structure of the dragonfly wing is simple, the dragonfly wing sample is obtained by evenly spraying titanium dioxide on the surface of the selected measured dragonfly wing, the light reflection capacity of the surface of the measured dragonfly wing can be greatly improved, scanning data obtained through scanning of the dragonfly wing sample are more accurate and complete, and the more accurate three-dimensional model of the corrugation structure of the dragonfly wing is obtained.

Description

technical field [0001] The invention relates to a method for generating a three-dimensional model of a dragonfly wing fold structure. Background technique [0002] Dragonfly flight has the advantages of high efficiency and high maneuverability, which attracts people to carry out extensive research on dragonfly flight in the fields of structural mechanics, aerodynamics, and micro air vehicle design. In most of the existing studies, people use flat wing models for dragonfly wings. However, only by naked eye observation, we can find that dragonfly wings are not straight, but full of complex three-dimensional wrinkled structures. In recent years, with the deepening of research, people have begun to try to use a more realistic three-dimensional wing model in the research. The preliminary research published in the journal Science shows that the three-dimensional fold structure on insect wings has an important impact on its flight performance. [0003] In order to provide more rea...

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Problems solved by technology

In the above representative experimental measurement techniques, there are mainly the following problems: 1. The sample preparation process of the two measurement methods is relatively complicated, and the sample preparation process will have a great impact on the measurement results, for example: in the scanning electron microscope measurement experiment Among them, dragonfly wings need to be cut and profiled. Dragonflies are very soft, and the cutting operation will cause large deformation of dragonfly wings; In the aqueous solution for about 2 hours, the wing sample after calcification treatment was dried before measurement. After the above two steps, the wing sample also produced a large deformation

2. In the micro-CT measurement experiment, it took more than 12 hours to measure a single wing. During the experiment, the environmental conditions will have a continuous impact on the sample

3. The scanning electron microscope measurement experiment can only obtain the relevant section or local three-dimensional geometric data. The strongest resolution capability of the existing micro-CT measurement system is about 5-10 μm, and a considerable part of the thickness of the wing membrane of the dragonfly is lower than this resolution. Therefore, it cannot be measured. In the paper "Structural Analysis of a Dragonfly Wing", for the selected dragonfly wing samples, 4% of the forewing cannot be measured, and 56% of the hind wing cannot be measured.

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