Engineering analysis methodology of heat sinks based on triply periodic minimal surfaces

Problem statement. In the design of modern heat sinks, porous structures based on triply periodic minimal surfaces are becoming increasingly important because they provide a large heat-transfer area and allow the geometry to be varied over a wide range. However, their use requires building a three-dimensional model, selecting the unit-cell parameters and wall thickness, constraining the external shape, preparing the mesh for export, and evaluating the main heat-transfer characteristics. This complicates the early design stage and increases the time needed to choose a suitable configuration.

Objective. To develop and analyze a software package for the generation of TPMS structures and the approximate evaluation of their geometric and heat-transfer parameters.

Results. A software package was developed that makes it possible to generate structures of the Gyroid and Diamond types on a voxel grid, constrain them by an external shape, add a shell, build a polygonal surface, repair mesh defects, and calculate the main geometric and thermal characteristics.

Practical significance. The use of the program makes it possible to accelerate the preliminary design of heat sinks, perform a comparative analysis of geometric variants, and obtain data suitable for further simulation and export to STL and OBJ formats.