The invention discloses a gradient random porous structure design method based on a
growth function and RBF (
Radial Basis Function) interpolation, which relates to the technical field of
geometric modeling and
computer graphics, and comprises the following steps: collecting and preprocessing Voronoi seed point coordinates and implicit boundary parameters, extracting
density field and gradient parameters, and calculating the
density field and gradient parameters; mixing different pore forms based on a beta
growth function to generate a transition region model, constructing a
scalar field in combination with RBF interpolation, fusing the model and a
density field to generate global gradient distribution, optimizing iteration to verify mechanical properties and correcting parameters, mapping the parameters into three-dimensional grid data, rendering a pore density cloud chart and a thermodynamic chart, and marking key parameters. By combining the beta
growth function and the RBF interpolation, the problem of
strong coupling of gradient control and seed point distribution and the problem of rigid transition of a supporting structure body are solved, flexible design of smooth gradual change and complex gradient of the pore form is achieved, mechanical properties are verified through optimization iteration, a three-dimensional visual model is generated, and the method is suitable for large-scale popularization and application. And the geometric continuity and
controllability of the porous structure design are obviously improved.