Method for preserving shapes in solid model when distributing material during topological optimization
US11189091B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 14, 2020 |
| Grant date | Nov 30, 2021 |
| Priority date | — |
| Expiry date | May 14, 2040 |
Classification
- Technology area (CPC —)General
Abstract
A method preserves shapes in a solid model when distributing material during topological optimization. A 3D geometric model of a part having a boundary shape is received. The geometric model is pre-processed to produce a variable-void mesh and to produce a frozen mesh representing the boundary shape. The geometric model is apportioned into a plurality of voxels, and a density value is adjusted for each voxel according to an optimization process. An iso-surface mesh is extracted from the voxel data, and a mesh Boolean intersection is derived between the extracted iso-surface mesh and the variable-void mesh. A mesh Boolean union between the mesh Boolean intersection and the frozen mesh.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.