The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 17, 2017

Filed:

Jan. 07, 2015
Applicant:

Siemens Product Lifecycle Management Software Inc., Plano, TX (US);

Inventors:

Suraj Ravi Musuvathy, Glenmont, NY (US);

Erhan Arisoy, Pittsburgh, PA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 17/50 (2006.01); B29C 67/00 (2017.01); B33Y 50/02 (2015.01);
U.S. Cl.
CPC ...
B29C 67/0088 (2013.01); B33Y 50/02 (2014.12); G06F 17/50 (2013.01);
Abstract

Methods for structure preserving topology optimization of lattice structures for additive manufacturing. A method includes receiving an initial lattice model, a physical objective of the initial lattice model to be optimized, forces to be applied to the initial lattice model and their respective locations, and an optimal volume ratio for an optimized lattice model, computing a bounding box of the initial lattice model and an axis-aligned voxel grid, computing an implicit scalar field representation of an initial volume ratio of the initial lattice model, mapping the loads to their respective locations in the axis-aligned voxel grid, performing an additive topology optimization on the initial lattice model to create the optimized lattice model until the initial volume ratio satisfies the optimal volume ratio, and storing the optimized lattice model.


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