公开(公告)号：US11449647B2

公开(公告)日：2022-09-20

申请号：US16747816

申请日：2020-01-21

Applicant: Autodesk, Inc.

Inventor： Michael Grau ,  Andrew John Harris

IPC: G06F30/15 ,  G06F30/12 ,  G06F30/00 ,  G06F30/23 ,  G06T17/20 ,  G06F30/20 ,  B33Y10/00 ,  B33Y50/00 ,  G05B19/4099 ,  G06F30/17

Abstract: A method and system provide the ability to generate models. A generative shelled base is created as a hollow computer-aided design (CAD) design. A t-spline mid-surface shell is created from the generative shelled base, which is then used to create a shell mesh model. A t-spline solid body is created from the generative shelled base, which is used to create an internal support structure that is converted into a shell CAD geometry, which is used to create a support structure mid-surface shell. The support structure mid-surface shell is combined with the shell mesh model into a generative mid-surface mesh that is used in a computer-aided engineering (CAE) crash simulation. The generated shelled base is combined with the shell CAD geometry into a generative shelled solid that is utilized in an additive build simulation.

公开(公告)号：US20240311523A1

公开(公告)日：2024-09-19

申请号：US18670377

申请日：2024-05-21

Applicant: Autodesk, Inc.

Inventor： Michael Grau ,  Andrew John Harris

IPC: G06F30/15 ,  B33Y10/00 ,  B33Y50/00 ,  G05B19/4099 ,  G06F30/00 ,  G06F30/12 ,  G06F30/17 ,  G06F30/20 ,  G06F30/23 ,  G06T17/20

CPC classification number: G06F30/15 ,  G06F30/12 ,  B33Y10/00 ,  B33Y50/00 ,  G05B19/4099 ,  G06F30/00 ,  G06F30/17 ,  G06F30/20 ,  G06F30/23 ,  G06T17/20

Abstract: A method and system provide the ability to generate models. A generative shelled base is created as a hollow computer-aided design (CAD) design. A t-spline mid-surface shell is created from the generative shelled base, which is then used to create a shell mesh model. A t-spline solid body is created from the generative shelled base, which is used to create an internal support structure that is converted into a shell CAD geometry, which is used to create a support structure mid-surface shell. The support structure mid-surface shell is combined with the shell mesh model into a generative mid-surface mesh that is used in a computer-aided engineering (CAE) crash simulation. The generated shelled base is combined with the shell CAD geometry into a generative shelled solid that is utilized in an additive build simulation.

公开(公告)号：US20230145217A1

公开(公告)日：2023-05-11

申请号：US18077948

申请日：2022-12-08

Applicant: Autodesk, Inc.

Inventor： Andrew John Harris ,  Konara Mudiyanselage Kosala Bandara ,  Dagmara Lilianna Szkurlat ,  Adrian Adam Thomas Butscher ,  Anthony Christopher Kipkirui Yegon Ruto

IPC: G06F30/23 ,  G06F30/10 ,  B29C64/393 ,  B33Y50/02

CPC classification number: G06F30/23 ,  G06F30/10 ,  B29C64/393 ,  B33Y50/02 ,  G06F2111/04

Abstract: Methods, systems, and apparatus, including medium-encoded computer program products, for computer aided design of physical structures using generative design processes, A method includes obtaining, by a computer aided design program, a design space for a modeled object, one or more design criteria for the modeled object, one or more in-use load cases, and a critical fatigue crack length for a material from which A physical structure will be manufactured; iteratively modifying a generatively designed three dimensional shape of the modeled object in the design space in accordance with the critical fatigue crack length for the material, wherein the iteratively modifying comprises enforcing a design criterion that limits a minimum thickness of the generatively designed three dimensional shape, the minimum thickness being based on the critical fatigue crack length for the material.

公开(公告)号：US20220237344A1

公开(公告)日：2022-07-28

申请号：US17714983

申请日：2022-04-06

Applicant: Autodesk, Inc.

Inventor： Andrew John Harris ,  Konara Mudiyanselage Kosala Bandara ,  Dagmara Lilianna Szkurlat ,  Adrian Adam Thomas Butscher ,  Anthony Christopher Kipkirui Yegon Ruto

IPC: G06F30/20 ,  G05B15/02 ,  G06F17/18

Abstract: Methods, systems, and apparatus, including medium-encoded computer program products, for computer aided design of physical structures using generative design processes. A method includes obtaining a design space for a modeled object, one or more design criteria, one or more in-use load cases, and one or more specifications of material, wherein the design criteria comprise a required number of loading cycles for the modeled object; iteratively modifying a generatively designed three dimensional shape of the modeled object, comprising: performing numerical simulation of the modeled object, finding a maximized stress or strain element for each of the one or more in-use load cases, determining an expected number of loading cycles for each of the one or more in-use load cases, redefining a fatigue safety factor inequality constraint for the modeled object, computing shape change velocities in accordance with at least the fatigue safety factor inequality constraint, and updating the level-set representation.

公开(公告)号：US20230325555A1

公开(公告)日：2023-10-12

申请号：US18141266

申请日：2023-04-28

Applicant: Autodesk, Inc.

Inventor： Andrew John Harris ,  Allin Irving Groom ,  Konara Mudiyanselage Kosala Bandara ,  Adrian Adam Thomas Butscher ,  Dagmara Lilianna Szkurlat

IPC: G06F30/20 ,  B29C64/393 ,  G06F30/10 ,  G06T17/10

CPC classification number: G06F30/20 ,  B29C64/393 ,  G06F30/10 ,  G06T17/10

Abstract: Methods, systems, and apparatus, including medium-encoded computer program products, for computer aided design of physical structures using generative design processes. A method includes obtaining one or more load cases and one or more design criteria for a modeled object, the one or more design criteria comprising a build material strength model indicating strength relationships between thickness of an object feature and build angle for that object feature resulting from additive manufacturing; iteratively modifying a three dimensional shape of the modeled object in accordance with the one or more design criteria and the one or more load cases, including applying the strength relationships between the thickness of the object feature and the build angle for that object feature on a per-element basis during numerical simulation of the modeled object; and providing the three dimensional shape of the modeled object for use in manufacturing a physical structure.

公开(公告)号：US11321508B2

公开(公告)日：2022-05-03

申请号：US16913403

申请日：2020-06-26

Applicant: Autodesk, Inc.

Inventor： Andrew John Harris ,  Konara Mudiyanselage Kosala Bandara ,  Dagmara Lilianna Szkurlat ,  Adrian Adam Thomas Butscher ,  Anthony Christopher Kipkirui Yegon Ruto

IPC: G06F30/20 ,  G06F17/18 ,  G05B15/02 ,  G06F111/04 ,  G06F111/10

Abstract: Methods, systems, and apparatus, including medium-encoded computer program products, for computer aided design of physical structures using generative design processes. A method includes obtaining a design space for a modeled object, one or more design criteria, one or more in-use load cases, and one or more specifications of material, wherein the design criteria comprise a required number of loading cycles for the modeled object; iteratively modifying a generatively designed three dimensional shape of the modeled object, comprising: performing numerical simulation of the modeled object, finding a maximized stress or strain element for each of the one or more in-use load cases, determining an expected number of loading cycles for each of the one or more in-use load cases, redefining a fatigue safety factor inequality constraint for the modeled object, computing shape change velocities in accordance with at least the fatigue safety factor inequality constraint, and updating the level-set representation.

公开(公告)号：US11989491B2

公开(公告)日：2024-05-21

申请号：US17933701

申请日：2022-09-20

Applicant: Autodesk, Inc.

Inventor： Michael Grau ,  Andrew John Harris

IPC: G06F30/15 ,  G06F30/12 ,  B33Y10/00 ,  B33Y50/00 ,  G05B19/4099 ,  G06F30/00 ,  G06F30/17 ,  G06F30/20 ,  G06F30/23 ,  G06T17/20

CPC classification number: G06F30/15 ,  G06F30/12 ,  B33Y10/00 ,  B33Y50/00 ,  G05B19/4099 ,  G06F30/00 ,  G06F30/17 ,  G06F30/20 ,  G06F30/23 ,  G06T17/20

Abstract: A method and system provide the ability to generate models. A generative shelled base is created as a hollow computer-aided design (CAD) design. A t-spline mid-surface shell is created from the generative shelled base, which is then used to create a shell mesh model. A t-spline solid body is created from the generative shelled base, which is used to create an internal support structure that is converted into a shell CAD geometry, which is used to create a support structure mid-surface shell. The support structure mid-surface shell is combined with the shell mesh model into a generative mid-surface mesh that is used in a computer-aided engineering (CAE) crash simulation. The generated shelled base is combined with the shell CAD geometry into a generative shelled solid that is utilized in an additive build simulation.

公开(公告)号：US11663379B2

公开(公告)日：2023-05-30

申请号：US16913425

申请日：2020-06-26

Applicant: Autodesk, Inc.

Inventor： Andrew John Harris ,  Allin Irving Groom ,  Konara Mudiyanselage Kosala Bandara ,  Adrian Adam Thomas Butscher ,  Dagmara Lilianna Szkurlat

IPC: G06T15/00 ,  G06F30/20 ,  B29C64/393 ,  G06F30/10 ,  G06T17/10

CPC classification number: G06F30/20 ,  B29C64/393 ,  G06F30/10 ,  G06T17/10

Abstract: Methods, systems, and apparatus, including medium-encoded computer program products, for computer aided design of physical structures using generative design processes. A method includes performing numerical simulation of a modeled object in accordance with a current version of the three dimensional shape and the one or more in-use load cases; finding a maximized stress or strain element, for each in-use load cases; determining an expected number of loading cycles for each of the one or more in-use load cases for the physical structure using the maximized stress or strain element and data relating fatigue strength to loading cycles; redefining a fatigue safety factor inequality constraint for the modeled object; computing shape change velocities for an implicit surface in a level-set representation of the three dimensional shape in accordance with at least the fatigue safety factor inequality constraint; and updating the level-set representation using the shape change velocities.

公开(公告)号：US20210263498A1

公开(公告)日：2021-08-26

申请号：US17238116

申请日：2021-04-22

Applicant: Autodesk, Inc.

Inventor： Konara Mudiyanselage Kosala Bandara ,  Karl Darcy Daniel Willis ,  Andrew John Harris ,  Andriy Banadyha ,  Daniele Grandi ,  Adrian Adam Thomas Butscher ,  Andreas Linas Bastian ,  Hooman Shayani

IPC: G05B19/4099 ,  G05B19/18 ,  G06F30/23 ,  B29C64/393 ,  B33Y10/00 ,  B33Y50/02

Abstract: Methods, systems, and apparatus, including medium-encoded computer program products, for computer aided design of physical structures using generative design processes, where three dimensional (3D) models of the physical structures can be produced to include lattices, hollows, holes, and combinations thereof, include: obtaining design criteria for an object; iteratively modifying 3D topology and shape(s) for the object using generative design process(es) that employ a macrostructure representation, e.g., using level-set method(s), in combination with physical simulation(s) that place void(s) in solid region(s) or solid(s) in void region(s) of the generative model of the object; and providing a 3D model of the generative design for the object for use in manufacturing a physical structure corresponding to the object using one or more computer-controlled manufacturing systems. The providing can include generating instructions for manufacturing machine(s), which can employ various manufacturing systems and techniques, including additive, subtractive and casting manufacturing methods.

公开(公告)号：US20210224432A1

公开(公告)日：2021-07-22

申请号：US16747816

申请日：2020-01-21

Applicant: Autodesk, Inc.

Inventor： Michael Grau ,  Andrew John Harris

IPC: G06F30/15 ,  G06F30/12

Abstract: A method and system provide the ability to generate models. A generative shelled base is created as a hollow computer-aided design (CAD) design. A t-spline mid-surface shell is created from the generative shelled base, which is then used to create a shell mesh model. A t-spline solid body is created from the generative shelled base, which is used to create an internal support structure that is converted into a shell CAD geometry, which is used to create a support structure mid-surface shell. The support structure mid-surface shell is combined with the shell mesh model into a generative mid-surface mesh that is used in a computer-aided engineering (CAE) crash simulation. The generated shelled base is combined with the shell CAD geometry into a generative shelled solid that is utilized in an additive build simulation.