Method and apparatus for modeling and designing multi-dimensional cellular structures for additive manufacturing
US11429083B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 10, 2018 |
| Grant date | Aug 30, 2022 |
| Priority date | — |
| Expiry date | May 8, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/49023
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Modeling, constructing, and designing conformal cellular structures with spatially variable and graded microstructures that have full geometric continuity is disclosed, which includes defining a global structural domain, where the microstructures are generated for a global mesh, defining a unit structure as a base cell using a level set function, which allows for beams, trusses, shells, and solids, transforming and mapping the base cell into each element of the global mesh using an isoparametric transformation, which creates a conformal cellular structure in accordance with a set of requirements on distribution of material and/or mechanical properties, and applying a global cutting function to guarantee geometric continuity in connections on the common face of any two neighboring cells of the structure. As a result, more complex geometric shapes and features can be generated at the cell level, while maintaining the specified geometric connectivity across the cells of the structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.