US 11,989,003 B2
System, method, and computer program for creating geometry-compliant lattice structures
Gregory John Vernon, Kansas City, MO (US)
Assigned to Honeywell Federal Manufacturing & Technologies, LLC, Kansas City, MO (US)
Filed by Honeywell Federal Manufacturing & Technologies, LLC, Kansas City, MO (US)
Filed on Jul. 6, 2021, as Appl. No. 17/367,936.
Application 17/367,936 is a continuation of application No. 16/865,729, filed on May 4, 2020, granted, now 11,073,819.
Application 16/865,729 is a continuation of application No. 16/366,690, filed on Mar. 27, 2019, granted, now 10,642,253, issued on May 5, 2020.
Application 16/366,690 is a continuation of application No. 14/997,238, filed on Jan. 15, 2016, granted, now 10,274,935, issued on Apr. 30, 2019.
Prior Publication US 2021/0341903 A1, Nov. 4, 2021
Int. Cl. G05B 19/4099 (2006.01); B29C 64/386 (2017.01); B33Y 50/02 (2015.01)
CPC G05B 19/4099 (2013.01) [B29C 64/386 (2017.08); B33Y 50/02 (2014.12); G05B 2219/35134 (2013.01); G05B 2219/49007 (2013.01); Y02P 90/02 (2015.11)] 20 Claims
OG exemplary drawing
 
1. A method of creating a lattice structure for a part formed via additive manufacturing, the method comprising the steps of:
accessing a finite element mesh generated based on a shape of the part, the finite element mesh comprising a plurality of mesh elements;
generating a lattice cellular component representation based on a mesh element of the finite element mesh;
generating a lattice structure representation based on the lattice cellular component;
deforming at least a portion of the lattice structure representation such that the lattice structure representation has a cellular periodicity corresponding to the mesh elements of the finite element mesh so that the lattice structure representation conforms to the shape of the part; and
iteratively optimizing the lattice structure representation, the iterative optimization including the steps of:
analyzing the lattice structure representation;
modifying some of the finite element mesh elements; and
deforming the lattice structure representation such that the lattice structure representation has a cellular periodicity corresponding to the modified mesh elements of the finite element mesh.