The invention provides a CAD
model reconstruction method and device for a
topological optimization result, and relates to the technical field of computer modeling, and the method comprises the steps: carrying out grid preprocessing, carrying out
component type grid segmentation, carrying out
patch type grid segmentation, obtaining at least two sub-grid patches, carrying out parameterization on each sub-grid patch, and obtaining a final parameterization result. And performing uniform interpolation sampling based on the final parameterization result to obtain sampling points, generating a spline surface by using the sampling points, assembling the spline surface, and generating a reconstructed CAD model corresponding to the three-dimensional
topological optimization fruit. The grid
model reconstruction method has the advantages of being high in
automation degree, high in
realizability, easy to operate and the like, is not limited to a tubular
topological optimization structure, has no obvious difference in effect when
processing tubular and non-tubular model characteristics, has higher universality, can adapt to the diversity requirements of industrial structure optimization, and is suitable for large-scale popularization and application. And meanwhile, the reconstruction efficiency and the reconstruction effect from the triangular
mesh model to the CAD model can be improved.