Parametric modeling method of folded plate reticulated shell based on grasshopper
A parametric modeling, plate mesh technology, applied in electrical digital data processing, design optimization/simulation, special data processing applications, etc. The design method is simple, the force analysis and structural design optimization are improved, and the modeling efficiency is improved
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example 1
[0037] Model example 1: The generation method of the first type of folded-plate reticulated shell, such as figure 2 shown. The method of generating the folded plate surface: 1) Use the polygon plug-in to form the bottom polygon. The input terminals R and S of the polygon plug-in are the radius and the number of sides of the polygon respectively, and the shape of the polygon is controlled parametrically. Use the line segmentation plug-in to divide the bottom polygon into S equal parts to obtain polygon corner points, that is, the input terminal N of the line segment segmentation plug-in is connected to the S of the side number input plug-in. 2) The generated point plug-in is connected with the sagittal height input plug-in, and the sagittal height is parameterized to adjust the Z coordinate of the vertex, and X and Y are 0 to obtain the vertex coordinates. Use the two-point straight line plug-in to connect the central vertex and the corner points of the polygon to form a ridg...
example 2
[0039] Model example two: pass image 3 The plug-in connection diagrams shown in (a) and (b) can form the first type of folded plate single-layer single-diagonal bar reticulated shell, such as image 3 (d) shown. image 3 The meaning of the geometric parameters of (a) is the same as figure 1 (a) are similar. The specific method of generating the single oblique rod type folded-plate reticulated shell: 1) The bottom polygon is generated by the formation of the polygon plug-in. The input terminals R and S of the polygon plug-in are the radius and the number of sides of the polygon respectively. The plug-in parametrically controls the shape of the polygon, and the line segmentation plug-in is used to divide the polygon into 2 times S equal parts to obtain the corner points and the midpoint of the bottom edge of the polygon. Separate polygon corners and base midpoints by data splitting plug-in. 2) Use the sagittal height input plug-in as the input terminal of the center point g...
example 3
[0044] Model example three: such as Figure 5 As shown, the generation method of the second type of folded-plate reticulated shell is as follows: 1) The bottom polygon is formed by the polygon plug-in, the input terminals R and S of the polygon plug-in are the radius and the number of sides of the generated polygon respectively, and the plug-in and the folded-plate ring are input through the radius The shape of the polygon can be parametrically controlled by inputting the number of copies into the plug-in, and the polygon is divided into 2 times S equal parts by the line segment segmentation plug-in to obtain the corner points and the midpoint of the bottom edge of the polygon. Separate polygon corners and base midpoints by data splitting plug-in. 2) Use the sagittal height input plug-in as the input of the center point generation plug-in, adjust the Z coordinate of the point through the sagittal height parameterization, and get the vertex coordinates with X and Y as 0 to get ...
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